i-Blades Keratome Sharp Tip, 20G pk/10For Entry into Anterior Chamber or Phaco Stab Incision Disposable, single use metal blades, ophthalmic angled slit knives with blue handles. Handle has smooth, single handed blade retraction and has ergonomic design. Blades have superior sharpness and are available in various widths and bevel designs with 45 degree angled tips. Packaged individually, AE9015 1. 50 mm to 1. 75 mm 24 G AE9018 1. 80mm to 2. 05 mm 20 G AE9020 2. 00 mm to 2. 25 mm 20G