
Designed for clarity and durability, Four E's premium cover glasses protect your samples while ensuring optimal optical performance. Perfectly sized and pre-cleaned, they are ready for immediate use, saving you time and effort. Our premium cover glasses are available in 2 square sizes (18x18mm, 22x22mm) and 1 rectangular size (24x50mm), and available in 3 materials: soda lime glass, super white glass or borosilicate 3.3 glass. They are precision-cut for uniform sized pieces.