meite SC7E Hog Ring Tool 15 Gauge 3/4-Inch C Ring Tool Hog Ring Plier Closure Tool Pneumatic 5/16-Inch to 27/64-Inch I.D. Closure Size Air Hog Ring Tool, Extended Nose for Hard-to-Reach Areas. For use with 15 gauge flex "C" style 3/4-Inch hog rings. Closure Size 5/16'' min to 27/64" I.D Ultra Lightweight to Reduce Operator Fatigue. Fastener: meite 15GA C Ring Plier Or Staples Series Inside Diameter Of 7.8 mm To be used in wire cage, car seat, spring mattress ect..