Fusion splicer electrode rods use steel material,high hardness, not easy oxidation and size . Use for:() 80S,61S,62S,FSM-70S,FSM-70R,FSM-19S,FSM-19R,FSM-60S,FSM-60R,FSM-18S,FSM-18R,FSM-50S,FSM-50R,FSM-17S/R,FSM-17S-,and other fusion splicer Less splicing loss,which within 0.2db. Light weight with 13g and small size in 20mm x 2mm. Stable performance with splicing 5000 times., Weight: 0.04519476371 pounds, Manufacturer: Jaywool