Material: Microscope slides with single convavity is made of premium Optical glass for lab observation.
Spercification: 50PCS, 25.4 x 76.2 x 1.2mm (1\" x 3\" x 0.05\"); Concave diameter:16mm(5/8\"), depth 0.5mm(0.02\") common size blank single depression slides widely compatible for microscope uses.
High Transparency: Four E'S Scientific single concave microscope slides use special glass treatment technique for high transparency.
Pre-cleaned : These glass slides are pre-cleaned and could be easily cleaned and resued, environmental friendly.
Design: Grounded edges design help protect skin from hurt. Paper insterted for easy remove.