94

1/8-Inch Tapered Cutter

1 x $5.39

Flood Barrier 6-In. x 5-Ft., 2-Pk.

1 x $17.99

Post-it Original Plain Notes, 3 x 5 Inches, Canary Yellow, Pack of 12

1 x $18.71

Lasco Delta Delex Cold Round Clear Tub & Shower Handle Kit

1 x $4.79

Outdoor Heavy Duty Mechanical Timer

1 x $40.00

5.5-In. Antique Brass Left Handed Lid Support

1 x $4.19

500 Series Strathmore Mixed Media Paper, 22 x 30 Inches, 90 Lbs., 10 Sheets

1 x $23.98

E2 Photo Lithium Coin Battery, 2L76, 3-Volt

1 x $4.49

20-Watt JCD Halogen Light Bulb

1 x $4.19

Linoleum Nails, Brass-Plated, 5/8-In. x 16, 1.5-oz.

1 x $6.00

12MM x 13MM Flare Nut Wrench

1 x $6.59

School Smart Colored File Folders Two-Tone, Letter Size, 1/3 Cut Tabs, Orange, Pack of 100

1 x $7.60

Dust Pan & Broom, Flip Lock

1 x $12.59

Quality Park Clasp Kraft Envelope, 6 x 9 Inches, Box of 100

1 x $13.90

House Address Number "7", Black Die-Cast Aluminum, 3-1/2-In.

1 x $6.00

Safco Wood Mail Sorter, 36 Compartments, 33-3/4 x 12 x 32-3/4 Inches, Black

1 x $135.70

Trend Enterprises Vowels and Vowel Teams Flash Cards, Set of 72

1 x $8.27

QT SAND

1 x $12.59

School Smart Retractable Hybrid Gel and Ink Pens, Blue, Pack of 48

1 x $17.72

United Scientific Tri-Corner Beaker Assortment - Set of 30

1 x $16.80

Thermal Socks, Charcoal, Ladies' Size 5-9

1 x $14.99

Pyrex Vista TD Graduated Cylinder, 50 mL, Pack of 18

1 x $146.00

Boshart 1 In. Barb x 1 In. Barb Nylon Insert Coupling

1 x $6.00

Scholastic Responsive Literacy

1 x $16.31

Wood Designs Infant Pull-Up Storage Unit with Shelf, 48 x 15 x 19 Inches

1 x $145.00

HUMMINGBIRD NECTAR CONCENTRATE

1 x $6.59

Scotch C-38 Desktop Tape Dispenser, Black

1 x $4.99

School Smart Seat Pocket, 13 x 14-1/2 Inches, Blue

1 x $6.34

Diablo Series Forstner Bit, High-Speed Steel, 1/4-In.

1 x $6.59

Sax Heavy Body Acrylic Paint, 1 Pint, Violet

1 x $3.77

RMC Enviro Care Neutral Disinfectant Concentrate Cleaner, 1 gal

1 x $21.19

Hose Stem Replacement, 3/4-In. Female, Brass

1 x $2.39

Lamplight Farms 32 Oz. Red Ultra-Pure Lamp Oil

1 x $7.19

Sax Colored Art Paper, 9 x 12 Inches, Black, 50 Sheets

1 x $2.83

School Smart Watercolor Paint Brushes, Long Handle, Size 2, Set of 12

1 x $2.67

K&S 1/4 In. x 36 In. Solid Aluminum Rod

1 x $1.97

Naphtha Paint Thinner, 1-Qt.

1 x $10.19

School Smart Round Ring View Binder, Polypropylene, 3 Inches, Black

1 x $4.63

Roylco Paper Popz, Collage Circles, Set of 1500

1 x $9.62

Applicator Refill, Oil Finish, 10-In.

1 x $4.79

Zep Concentrated All-Purpose Carpet Shampoo, 128 Fluid Ounces, Blue

1 x $11.47

Offset Screwdriver Set, 2-Pc.

1 x $2.99

Xerox Ink Toner Cartridge, 106R03512, Black

1 x $149.00

Speedball Red Baron Battleship Gray Unmounted Linoleum, 6 x 6 inches

1 x $8.00

Adams Clear Plastic Window Candle Holder Clamp (4-Pack)

1 x $2.99

Shell Education 180 Days of Geography for First Grade

1 x $17.99

5-oz. White All-Purpose Elastomeric Sealant

1 x $5.39

Harper 16 In. W. x 67 In. L. Wood Handle Street Push Broom

1 x $26.99

Red Devil Stiff Wall Scraper 3"

1 x $2.99

Prang Medium Weight Construction Paper, 24 x 36 Inches, Assorted Colors, 50 Sheets

1 x $9.17

#1 HINGE STANDARDW/FASTENERS

1 x $4.79

Multi-Mix Pail Lid, Pint/Qt.

1 x $8.00

Pipe Fitting, Rough Brass Reducing Coupling, Lead-Free, 3/8 x 1/8-In.

1 x $4.19

National V170 4 In. Antique Brass Window Sash Lift

1 x $2.99

SportsPlay Equipment Swing Set Pull Chain Attachment with 8 ft Chain, 2-3/8 in Top Cross Bar

1 x $145.00

1.5-In. x 10-Ft. Steel Pipe, Black, Import, Threaded

1 x $26.99

Stihl MSA 140 C-BQ Battery-powered Chain Saw Set

1 x $150.00

Weber Grill Spray

1 x $4.19

Scotch 256 Printable Flatback Paper Tape, 1 Inch x 60 Yard, White

1 x $20.01

Double HH Tractor Bent Pin

1 x $9.00

Rust-Oleum Protective Enamel Spray Sail Blue

1 x $4.97

American Standard Seat Disk

1 x $2.87

Doorstop, Spring, White, 3-In., 2-Pk.

1 x $2.99

Smead File Pocket, Letter Size, 3-1/2 Inch Expansion, 2/5 Cut, Redrope, Pack of 25

1 x $99.49

Trend Enterprises Alphabet 2-Piece Puzzles, Assorted Themes, Set of 26

1 x $11.74

No-Spill Gas Can ViewStripe Pro

1 x $26.99

Webster Industries Heavy-Duty Recycled Can Liners, 7 to 10 Gallon, Black, Pack of 500

1 x $61.80

Instruments of the World Instrument Rhythm Set, 12 Pieces

1 x $78.64

Sportime Practice Goal, 6 x 8 Feet

1 x $79.50

Tip-Me-Not Traditional Kitchen Sink, 24 in x 24 in x 15 in

1 x $147.00

Roylco Animal and Creatures Paper, 8-1/2 x 11 Inches, Pack of 96

1 x $13.81

High-Performance Lower Unit Gear Lubricant, 10-oz.

1 x $2.69

Apex Tool 72-Tooth 12 Point Ratcheting Combination SAE Wrench Set

1 x $50.00

Dog Treats, Natural Bone, Large

1 x $4.19

Shirley K's T-134 Storage Bin, 14-1/2 x 11-1/2 x 6-1/4 Inches, Ivory

1 x $15.02

Quality Park Printable Envelopes, , No. 10, White, Box of 500

1 x $23.99

Interior Wood Stain Dark Chocolate Truffle , 1/2-Pt.

1 x $5.99

Eklind Standard Ball-End Hex Key Set, 7-Piece

1 x $8.99

Sportime Stop Bullying! Bulletin Board Charts, Set of 8, Grades 5 to 12

1 x $25.73

Classic Steel Picture Hangers, 50-Lb., 3-Pk.

1 x $2.57

Plumb Pak Floor & Ceiling Plate Flange, Chrome Plated, 1/2"

1 x $2.09

Spectra Deluxe Bleeding Tissue Paper, 20 x 30 Inches, Medium Blue, 24 Sheets

1 x $2.42

Sax Heavy Body Acrylic Paint, 1 Quart, Blockout White

1 x $6.97

Sportime Ultimax Bowling Ball, 6 Pounds, Orange Glitter

1 x $38.33

Hy-ko Products Notched Skeleton Key 2 Pack

1 x $2.57

School Smart Laminating Film Roll, 27 Inches x 500 Feet, 1.5 mil Thick, Pack of 2

1 x $44.06

Quaker Foods Peanut Butter Big Chewy Granola Bar, 1.48 oz, 10 Per Box

1 x $11.02

United Visual Products Non-Illuminated Outdoor Single Sided Message Board, 48 in H X 96 in W, Aluminum Frame, Satin

1 x $147.00

MIDWEST KIDS LEATHER PALM GLOVE

1 x $3.89

Lucky Line American Flag Design Decorative House Key, SC1

1 x $3.59

School Smart Glue Sticks, 0.74 Ounces, White and Dries Clear, Pack of 12

1 x $5.35

ADAPTER 1/2 BRASS PEX BARB X MPT

1 x $2.87

Pipe Fitting, Compression Elbow, 90-Degree, Lead-Free Brass, 1/4-In.

1 x $2.99

Pond-Mag 2 Magnetic Drive Utility Pump, 250 GPH

1 x $50.00

Total $2,395.80

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Proudct

Proudct

United Scientific Double Concave Lens, 50 mm Diameter, 150 mm Focal Length

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Description

These mighty little curves of glass shed some light on learning the science behind optical principles. Also known as diverging lenses, these Double Concave Glass Lenses from United Scientific are superior quality aids, each with two inwardly curved/bulging-out surfaces and a negative focal length of 150 millimeters (mm). Diameter of each lens is 50 millimeters (mm). The kind normally found in items like TV projectors (to make light rays spread out into the distance), cameras, flashlights and more, this type of lens makes parallel/distant light rays passing through curve turn inward or diverge. Note that the shorter the focal length, the more powerful the lens. Use this pair for research studies or teaching demonstrations in geometric optics, physics, and other general optic lessons.

Features

Consists of 2 inwardly curved surfaces and a negative focal length, commonly known to correct nearsightednessDiverging lenses can specifically be used as an aid in distribution of light and image reduction alongside a mirror (sold separately)Teachers and students can use these superior quality glasses lenses for learning/teaching optical principles, reflection, physics and moreComplement these concave lenses with convex lenses (sold separately) for learning about opposing optic forces for the best geometric optics demonstrationsIncludes:2 Concave Lenses Shipping Details Shipping Type: parcel Free Shipping: true Specifications Maximum Age: 12 years Product Dimensions: 50 mm UPC: 840287213997 Allergens: Contains No Allergens Certifications: Not Applicable Grade Level: Middle-High School Specialty Shops: Clearance SUOM Description: Each Brand Name: United Scientific Description: Double Concave Lens Material: Glass Material: Glass Focal Length: 150 mm California Proposition 65 Warning: WARNING: iWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov. For more information go to www.P65Warnings.ca.gov.

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