Double Loop Tie Wires: as a binding wire used in packing or construction. It is easy to operate simplly and directly, enhance the working efficiency, reduce pollution. We will also custom-produce diameter and lengths to your requirements. Double Loop Tie Wires Materials: Fine low carbon black wire, galvanized wire, copper plated wire and PVC threads Diameter: 21Ga-14Ga BWG Length: 4" to 16". QTY/coil 1000/2500/3000/5000 etc