Features: Engineered for efficient heat conduction and rapid glues flows, this hot glues guns nozzle features a leak proof spring loaded steel ball design to prevent messy drips while ensuring uniform adhesive application for precise crafting. Crafted with premium copper construction and aluminum inner cores, the glues guns tip integrates a reinforced steel spring mechanism for enhanced stability. Ideal for craft enthusiasts, and DIYers seeking reliabled performances, this versatile nozzle adapts to 90%+ glues guns for seamless project transitioning Tackle intricate woodworking repairs, craft assemblies, or home decor fixes effortlessly in workshops, studios, or garage spaces with its extended hole design for controlled adhesive placement. Optimize workflow with quick swap compatibility across major glues guns brands, combining corrosions resistant materials and precise engineering to withstand high temperature adhesives repeatedly. Specifications: Main Body Component: copper, inner hole: aluminum, steel ball spring: iron Specifications: 2.5x32mm (none hexagonal edges), 2.5x32mm, 2.5x38mm, 3x41mm, 2.5x50mm Package Includes: 1pcs Hot Melt Adhesive Nozzle note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.