Fangrui Product Details Come with 4different size nozzles all in 1 pack, each nozzle has a different purpose and you can use that best suits for your requirements. Made of High-quality materials 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 ball and waterproof rubber o-ring 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 percent glue on the market, nozzle thread is 10.8mm (7 or 16 inch). 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. Specification: Type: Glue Nozzles Thread Diameter: 7 or 16 Inch (10.8mm) 4 Different Sizes: 2.0x70mm or 3.0x50mm or 2.0x50mm or 2.0x32mm Material: brass colour: Yellow Package Contents: 1 s Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store