Features:_x000D_ _x000D_ 1. Tire inflation nozzle: all copper material, tail insert 6.5mm, threaded screw type, good sealing._x000D_ _x000D_ 2. Surface treatment: the use of pure copper speed nozzle, the surface is cleaned by a new process, beautiful and shiny, no stains._x000D_ _x000D_ 3. Anti-skid design: wilting knurling design, better anti-slip, screw up and not slip._x000D_ _x000D_ 4. Rubber washer: one internal rubber gasket, waterproof and leakproof._x000D_ _x000D_ 5. Easy to install: These bike adapters are very lightweight and can be left on the Presta valve. If you use a compressor to inflate the tires, you save time and do not need to remove the adapter._x000D_ _x000D_ _x000D_ _x000D_ Descriptions:_x000D_ _x000D_ This product is a pure copper connector, with a wide range of uses, valves of various specifications, suitable for various purposes, bicycles, basketballs, inflatable toys._x000D_ _x000D_ _x000D_ _x000D_ Specifications:_x000D_ _x000D_ Material: pure copper_x000D_ _x000D_ Size: 36*9.4mm_x000D_ _x000D_ Color: gold_x000D_ _x000D_ _x000D_ _x000D_ Package Included:_x000D_ _x000D_ 1 * Pure copper gas nozzle_x000D_ _x000D_ _x000D_ Notes:_x000D_ 1. Due to the difference between different monitors, the picture may not reflect the current color of the item. We guarantee the style is the same as shown in the pictures._x000D_ 2. Due to the manual measurement and different measurement methods, please allow 1-3cm deviation. Thanks