Welding Electrode Holders- We are specialize in welding electrode electrode holders, all kings of electrode holders300A /500A/800A 1)Outside material is glass fiber2)Inside material can be brass and iron3)packing: everyone a opp bag,and put in a color box.50pcs/ctn. 4) G.W/N.W(kg) 26/25kgs QTY(pcs) 50 Meas(cm) 55.5*34*23.5