5pcs Reusable Laboratory Educational Single Concave Microscope Blank Glass 2mm 1″ x 3″

1. Quantity: 5pcs/Box, Single Concave Slides

2. Dimensions of Slide: 1″ x 3″ (25.4×76.2mm)

3. Glass THICK: 1mm-1.2mm THICK

4. Concave Diameter: 12-14mm,  Depth is 0.2-4mm

5. Clear Glass, Ground Edges

6. Weight/Box: about 50g