Making collection microscope observation of specimens. Making the object under observation forming a thin film, easy to transmit light, easy to observe Facilitate to use capillary phenomenon, to make add all kinds of reagents(Dye, acid, salt solution) forming a gradient. To avoid sample contamination. Features1., It is generally used in cooperation with a microscope slide., 2., Good replacements and articles for school laboratory. Microscope Slides For Kids 100pcs Microscope Glass Cover Slips Specifications:Size: 22 * 22 mm, thickness 0., 13-0., 17 mmMaterial: GlassColor: TransparentPackage: 100/pkUsage:Making collection microscope observation of specimens. ==========Model Number : 22 * 22mmOrigin : Mainland ChinaClassification : Laboratory ClampMaterial : GlassSize : 22 * 22 mmThickness : 0., 13~0., 17 mmPacking : Pack of 100/pk 0.13-0.17mm Thick Coverglass Microscope Slides Glass Coverslip Cover Slip 22*22 Mm 100 Pcs New Glass Slides