Engineered with precise stamped copper aluminum construction, these hot glues guns nozzles ensures rapid heat distribution and consistent glues flows, featuring a built in steel ball spring mechanism for leak during crafting or repair tasks. Choose from multiple specifications (2.5x32mm to 2.5x50mm) with universally compatibility for 90%+ glues guns, reinforced by copper bodies and aluminum cores for heat retention and iron spring for extended durability. Ideal for DIYer enthusiasts, and professional requiring precise adhesive control in woodworking, packaging, or electronic assembly projects. Tackle intricate craft designs, secure heavy duty materials, or repair household items effortlessly with temperature resistant nozzles that messy drips and ensures clean application. Package includes: Pack of 5 Bronze Aluminum Epoxy Nozzles