Please check you Pneumatic gun first, This C ring for Bostitch & Meite Brand SC760B stapler. 16 Gauge 1/2-Inch C Ring Staples for SC760B C Ring Gun Tools Inside Diameter of 3.2-4.8mm 18,000 PCS/BOX (1 Box). Crown Width 16 Gauge in 304 STAINLESS STEEL. Similar to C17/ SC-660/ SC-760/ 16G 100P. Staples Compatible With meite SC760B C-RING Stapler. Use For Mattress, Car Seat. Pet Cage in Saltwater. SC760B by 16 Gauge C ring gun, C ring open crown 1/2″, close to 1/8″ only.