【Specifications】2.0 x 34 mm, 2.0 x 50 mm, 3.0 x 50 mm, 2.0 x 70 mm, 4 different nozzle diameters meet different working needs. 【High Quality】The glue gun nozzle is made of copper, sturdy and wear-resistant, good thermal conductivity for smoother and faster glue flow. 【Leak-Proof Design】All copper nozzles have built-in leak-proof steel balls and high-temperature resistant silicone seals to prevent glue leakage. 【Versatile】Nozzle for use with hot melt glue gun and glue stick for gluing toys, art flowers, plastic, wood, glass, metal, cables and fabrics. 【Good Compatibility】The Copper glue gun nozzle with 10.8mm thread diameter is suitable for most glue guns on the market and is an excellent replacement for the original nozzle.