DescriptionAre you looking for a professional, yet affordable bike cap? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional bike must meet you needs. It is one of the best choices for you.Features- Color: Colorful. - Size: 1 x 1 x 2.5 cm/0.39 x 0.39 x 1 inch. - Material: Aluminum alloy. - Cover your valves to prevent damage to the bike core. - Replace your worn plastic caps with strong metal caps. - Prevent leakage, dirt and rain water to extend the service life of bike tire. - Easy to install, put the caps on to the tire stem to scre. - Makes your bike looks more attractive and special.