Durable Bike Bottle Cage: The bottle cage made of high quality PC material, durable, lightweight, will not wear the bike frame, easy to install. Ideal for road, mountain, hybrid, touring and electric bikes. Bottle Cage - The bike water bottle cage ensures your full bottle stays firmly in place, whether you're on on-road or off-road. The bracket Fits most standard and oversized bicycle water bottles., slim PC bayonet won't scratch the bottle. Easy installation - including necessary installation accessories, screws are the standard size of most bike water bottle holders with drilled holes. Washers are recommended for firm attachment. Best Design - The bottle holder has arms that wrap around the bottle to ensure a secure and firm grip, so you don't have to worry about it falling out while you drive. Stay hydrated while riding. riding - Quick and easy access to your bike's water bottle when you need it. Buy 2 water bottle cages to stay hydrated on those really long rides, so you can go the distance.