... quality 4)acrown:16.7mm, wire dia:1.6mm staple Nail book needle size: 10 #, unified (24/6), 26/6, ... , pin series, two JiaoDing series, safety pins series, pushpin series, long tail clip series and various suction card packaging, plastic box ... of iron, still have a kind of were of brass.Nail book needle size: 10 #, unified (24/6), 26/6, ... c staples, C nails.industrial staples nails C Ring Staple(nail)