Features: 100% brand new and high quality convenient installation There are environmental sealing rings and no leakage happens Presta to Shrader bicycle road bike valve adapters Be used along with a bicycle pump or air compressor Product name: Presta to Shrader Bicycle Road Bike Valve Adapters Converters Material: aluminum alloy Color: gold/silver Product size: 15 X 9 X 9mm/5.91 X 3.54 X 3.54 #34;