MULTIPLE SPECIFICATIONSThis nozzle can help stick in narrow spaces, 4 different nozzle diameters meet different working needs. Nozzle size: 2.0*34mm, 2.0*50mm, 3.0*50mm, 2.0*70mm, thread diameter: 10.8mm PURE COPPER MATERIALMade of quality brass, tested hundreds of times for durability, still works like new, copper nozzles could last even more years than nozzles made of aluminum NO DRIPAll copper nozzle has a built-in anti-leakage steel ball, no matter in the process of preheating, in use or after use, it will not there will be no glue leakage from the nozzle Wide range of usesJewelry tools, glue gun hot melt tool accessories, can be used for artistic flowers, Toys, wood, plastic, glass, metal, stone, ceramic, brick, paper, fabric and other materials very practical in everyday life HIGH COMPATIBILITYThis glue gun nozzle is suitable for most glue guns. You can measure your old nozzle, if the diameter of your old nozzle is 10.8 mm, you can buy this nozzle to replace it Number of pieces delivered: 4