unground edges,cut edges,economic type,uniform.super white glass sheet 7102 MICROSCOPE SLIDES Unground EdgesSpecificationPcs/BoxBox/CTNG/N.WMeas (kg)(cm) 25.4×76.2(1"×3")0.8-1.0505014/1336×18×16 7219/1843×20×16 25.4×76.2(1"×3")1.0-1.2505014/1336×18×16 7220/1943×20×16 microscope slide unground edges