DescriptionApplication : Hot melt glue gunModel Number : Thread Diameter 10.8mmCertification : NONEOrigin : Mainland China1Pcs Pure Copper Hot Melt Glue Gun Nozzle Long Short Small-bore Large Diameter Glue Gun Nozzle Leak-proof Gun NozzleFeatures:PLENTY OF SIZES- Different size nozzles to choose, each nozzle has different purpose, you can choose the one that is most suitable for you to meet your requirements.LONG SERVICE TIME- Made of pure copper material, have been tested for hundreds of times in durability, still work like new, copper nozzles could last even more years than aluminium nozzles.LEAKPROOF DESIGN- All copper nozzles have a built-in leakproof steel ball, no matter in pre-heating process, in use or after use, there will be no glue leakage from the nozzle.PROTECTING SLEEVE- Send with rubber-made protecting sleeve to protect your fingers from the high temperature hurt. Note: only the 40mm long or above nozzles will get the protecting sleeve.HIGH COMPATIBILITY- Suitable for 90% above glue guns on the market, nozzle thread is the most common size: 10.8mm(16/7 inch). We suggest using high power glue gun for the long nozzle to achieve the perfect using effect.