All slides are pre-cleaned, ready-to-use slides (25 x 75 x 1 mm) with a 19 mm permanent labeling tab Featuring square (90°) or clipped corners (45° all four corners) and smoothly ground edges For use in standard lab applications Manufactured in China 1 pack = approximately 144 slides 1 pack is packaged in 2 boxes of approximately 72 slides per box 10 packs = 1 case