This is a package of 50pc pre-cleaned blank microscope slides and 100pc square cover slips. The dimensions of the slide are 1" x 3" (25.4x76.2mm) with ground edges. The cover slips are 23/32 x 23/32" (18x18mm) and 0.006" (0.15mm) in thickness. 

Features & Specifications:

• Quantity: 50 blank slides and 100 coverslips.
• Dimensions of Slide: 1" x 3" (25.4x76.2mm).
• Dimensions of Cover Slips: 23/32 x 23/32x0.006" (18x18x0.15mm).
• Material: optical glass