These bottles are made of translucent and low density polyethylene (LDPE). Solutions can be dispensed easily by lightly squeezing the bottle. The flexible polyethylene delivery tube can be directed wherever required.IncludesBottles (12) Shipping Details Shipping Type: parcel Free Shipping: true Specifications Maximum Age: None Maximum Grade Level: None Capacity: 125mL Allergens: Contains No Allergens Certifications: Not Applicable Grade Level: Grades 5-12 SUOM Description: Pack of 12 Brand Name: United Scientific Description: Wash Bottles