uxcell 100 Pcs 40mm Length Round Ball Head Pins Headpins Wire Beading Tool Product Name : Round Head Pins;Material : Metal Color : Silver Tone Pin Size(Each One) : 40 x 0.5 x 1.8mm/1.6" x 0.02" x 0.07"(L*D*Ball Dia.) Total Weight : 10g Package Content : 100(+-2%)xRound Head Pins