Cover Glass/Slips for Microscope Slides from NEST Scientific are made from high-quality glass that is non-cytotoxic. Suitable for use with 6-, 12-, and 24-Well cell culture plates.High-quality glass, non-cytotoxicThickness: 0.16 - 0.19 mmManufactured in 100,000 grade clean roomsResistant to organic solventsFully autoclavableCan be used in a confocal experimentAvailable in diameters of 14, 15, 18, 20 and 25mmPackaged as 100 units per pack