These Pyrex Borosilicate Watch Glasses measure 90 mm each. They are fire polished and sold as a pack of 12.
PYREX 90 mm diameter watch glasses are designed to fit 400 ml PYREX(R) beakersMolded to the same radius of curvature for convenient stackingHeavy wall glass and uniform fire-polished edge provide mechanical strengthOutside diameter cannot be controlled within close limits and a slight degree of out-of-round can be expectedHigh chemical durability, thus preventing contamination of sample Shipping Details Shipping Type: parcel Free Shipping: true Specifications Maximum Age: 12 years Allergens: Contains No Allergens Certifications: Not Applicable Grade Level: Not Specified Specialty Shops: Clearance SUOM Description: Pack of 12 Brand Name: Pyrex Description: Borosilicate Watch Glass Dimensions: 90 mm Material: Borosilicate Glass
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