The MTC Bio M7100-90 Microscope Slides with 90° Corners, Positive Charged, 25 x 75mm, Pack of 72, have a positive charge that makes the surface ideal for cell, tissue and general sample adhesion. Typical samples have a negative charge and are therefore attracted to the positively charged slide surface, significantly reducing "float".

The slides are made of high clarity glass, 25 x 75mm and are 1.1mm thick (compatible with most printers). There is a frosted marking surface on one end.