Valve adaptor kit made of pure solid metal and premium plastic, with standard screw threads which is perfect for tire pumping, balls, swim ring, balloon or other inflatable toys inflating. Generally, bike tires use while automobiles use valve. With adapters you can easily inflate your bike or car tire at any time, whether with air compressor, minipump or at the gas station. Features - Color: Golden and black. - Material: Metal and plastic. - Size: 4.00 x 1.50 x 1.50cm/ 1.57 x 0.59 x 0.59 inch. - The bike used with a bike pump or compressor. - These tools conveniently converts your bike from to valve, then you can inflate your bike tires freely by using pump or car air compressor. - Install the to adapter, simply loosen the tip of the and then screw on the adaptor, now your is a valve. No need any complex installation. - This small pocket-sized adaptor can be easily taken on your travels, fitment fits for all bike tires with valves. The adaptor also can be left on the tire stem for inflating your bike tires or check air pressure at the gas station conveniently. of the adapters are made of pure solid metal, prevent air leakage and makes it much easier to pump your bikes. Package list: 30pcs/set x bike pump adapters