Olympus PQ 20 fiber optic scope. 9mm diameter, 1,025mm long w/4 way tip deflection. Biopsy channel is 2.8 mm. Includes one biopsy forceps and channel cleaning brush as well as Olympus CLK-3 light/air water source. It appears to have virtually zero broken fibers and the image is beautiful. This is perfect for a small animal veterinary practice.