Corning® 18x18 mm Square #1½ Cover Glass
Corning Life SciencesCorning’s special, optically clear, water-white, borosilicate cover glass is resistant to surface attach or weathering and will remain clear for extended periods of time. Packed one ounce per pack and 10 packs per case.The thickness of No. 1 1/2 squares is 0.16 mm to 0.19 mm.