meite C Ring Plier Or Staples By C Ring Gun Tools Series 15GA Inside Diameter Of 4.8mm Use For Mattress, Car Seat . Sofa. Fencing. Pet Cage. Crown Width 15GA Inside Diameter Range Of 4.8mm, Galvanized Steel Staples Compatible With meite SC7C, SC7E C-RING Staplers To be used in wire cage, car seat, spring mattress ect.