Come with 4different size nozzles all in 1 pack, each nozzle has a different and you can use that best suits for your requirements.Made of Highquality materials with excellent thermal conductivity and hundreds of durability tests. It can make the glue flow smoothly and steadily, durable and wearresistant for longterm use!All copper nozzles have a builtin antidripping steel ball and waterproof rubber oring that prevents the nozzle from leaking glue, whether during preheating, during or after use. Improve work efficiency!This hot glue tips fits more than 90% glue on the market, nozzle thread is 10.8mm (7/16 inch).Long tube nozzle have an average glue amount for hardtoreach areas. Perfect DIY accessories for precise crafts or small projects such as decorative toys, artistic flowers, home repairs, DIY craft projects and more.Specification: Type: Glue NozzlesThread Diameter: 7/16 Inch (10.8mm)4 Different Sizes: 2.0x70mm/3.0x50mm/2.0x50mm/2.0x32mmMaterial: brasscolour: YellowPackage Contents: 1 set x Glue NozzlesOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.