Specification Type: Glue Nozzles Thread Diameter: 7/16 Inch (10.8mm) 5 Different Sizes: 2.0 x 34mm, 2.0 x 50mm, 2.0 x 70mm, 2.0 x 100mm, 3.0 x 50mm Material: brass colour: gold Package Contents: 1 set x Glue Nozzles Only the above package content, other 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 +/- 1-3cm. Come with 5 different size nozzles (Small Bore & Long Tube) all in 1 pack, each nozzle has a different and you can use that best suits for your requirements. Bore Diameter x Length: 2.0x34mm, 2.0x50mm, 2.0x70mm, 2.0x100mm, 3.0x50mm; Thread Diameter: 7/16 Inch (10.8mm) Made of pure copper material with excellent thermal conductivity and hundreds of durability tests. It can make the glue flow smoothly and steadily, and wear- for long-term use! All copper nozzles have a built-in anti-dripping steel and waterproof rubber o-ring that prevents the nozzle from leaking glue, whether during preheating, during or after use. Improve work efficiency! Long tube nozzle have an average glue amount for hard-to-reach areas. Perfect DIY accessories for precise crafts or small projects such as decorative toys, artistic flowers, home repairs, DIY craft projects and more. This hot glue tips fits more than 90% glue on the market, nozzle thread is 10.8mm (7/16 inch).