NIUNIU Made of copper: All of these bicycle pump valve accessories are made of copper with screw threads, which is extremely durable and corrosion resistant. Thanks to the high-quality workmanship, the set will be a long-term companion. With standard size: the valve adapter fits most bike pumps, such as mountain bikes, road bikes, racing cycle Valve, and the ball pump needle and the plastic pump hose ideal for inflatable toys, Air bed, football, balloons, swim ring, ect. Easy to install: This pump adaptor for inflatables is ightweight, practical, convenient to install and easy to use, simply screw and inflate automotive pump, compressor. Delivery Quantity: 1 set of 15pcs, Bike Valve Adapter Package Contents: Only the above package contents, excluding other products. Dimensions: 18x9x4mm, 15x10x7mm, 48x6x3mm, 39x6mm, 25x7x4mm, 26mm. (Reminder: The size is measured manually, please allow 1-2 cm measurement error) Color: Gold (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)