Glass Cover-slips, #2 Thickness, 0.17-0.25mm 1305-22 18mm x 18mm 80pcs/pk 1305-26 22mm x 22mm 80pcs/pk 1305-27 22mm x 40mm 80pcs/pk 1305-28 24mm x 40mm 80pcs/pk 1305-29 25mm x 25mm 80pcs/pk Glass Cover-slips, #1 Thickness, 0.13 - 0.17mm 1305-20 18mm x 18mm 100pcs/pk 1305-21 22mm x 22mm 100pcs/pk 1305-23 24mm x 24mm 100pcs/pk 1305-24 22mm x 40mm 100pcs/pk 1305-25 24mm x 40mm 100pcs/pk 1305-30 20mm x 20mm 100pcs/pk 1305-31 24mm x 32mm 100pcs/pk 1305-32 24mm x 50mm 100pcs/pk 1305-33 25mm x 25mm 100pcs/pk Qty :