DescriptionValve adaptor kit made of pure solid copper and premium plastic, corrosion resistant with standard screw threads which is perfect for tire pumping, balls, swim ring, balloon or other inflatable toys inflating. Generally, bike tires use Presta while automobiles use Schrader 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.- Material: Plastic and copper.- Size: 4.50 x 1.20 x 1.20cm/ 1.77 x 0.47 x 0.47 inch.- The bike used with a bike pump or a air compressor.- These Schrader tools conveniently converts your bike from Presta to Schrader valve, then you can inflate your bike tires freely by using Schrader pump or car air compressor.- Install the Presta to Schrader adapter, simply loosen the tip of the Presta and then screw on the adaptor, now your Presta is a Schrader valve. No need any complex installation.- This small pocket-sized Presta adaptor can be easily taken on your travels, universal fitment fits for all bike tires with Presta 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.- All of the adapters are made of pure solid copper, prevent air leakage and makes it much easier to pump your bikes.