Features: *Aluminum Alloy Material: Made of high-quality CNC cutting aluminum alloy, ensuring higher thread accuracy and durability. *Scaly Anti-slip Design: The knob is designed with a scaly anti-slip pattern, providing a firm grip and convenient usage. *Anodized Coloring: The smooth and round anodized coloring enhances the overall aesthetic appeal and prevents color fading. *Built-In Sealing Gasket: Equipped with a rubber sealing gasket at the interface, effectively obstruct air leakage. Specifications: *Product Name:Inflatable extension nozzle *Material:Aluminum Alloy *Size:45*11.3 mm *Color:Black, red, gold,silver Package Content: 1pcs Inflatable Extension Nozzle Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Features: Anti Slip Pattern Bicycle Gas Extension Conversion Nozzle for Easy Usage Material: light weight, good strength and well temperature resistance, good impact resistance Appearance and performance: automatic cutting, smooth edge, fit most of the road bicycles, delicate texture. Compatibility: smooth surface and exquisite workmanship, fit most of the bicycles. Easy Installation: Brand new and high quality, easy to install.