1. Pack include 1/20inchx1.26inch(1.2x32mm) + 1/17inchx1.26inch(1.5x32mm) + 1/13inchx1.26inch(2.0x32mm).2. Made of pure copper, have been tested for hundreds of times in durability, still work like new, copper nozzles could last even than aluminium nozzles.3.3 different sizes, each nozzle has different size bore, you can use that is most suitable to meet your requirements.4.Fits for more than 98% glue on the market, nozzle thread is the most common size: 7/16inch.5.Whole body made by copper material, Excellence thermal conductivity make glue flow more smoothly and fasterColor: GoldMaterial: copperPackage Contents:1 x 1.2x32mm Copper Nozzles1 x 1.5x32mm Copper Nozzles1 x 2.0x32mm Copper Nozzles1 x Mini WrenchOnly 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 +/- 1-3cm.