【EASY INSTALLATION】IMPORTANT: Please check your frame for threaded holes (for mounting mountain bike water bottle cages) before purchase. It takes less than 60 seconds to install these bike water bottle cages. Use a 3mm allen wrench to secure the stainless steel bolts to the bike rack. Easy to install and remove. 【DURABLE AND LIGHT】The water bottle cage is made of CNC machined PC material, heat treated for a strong and lightweight design. Use your foot to step on the water bottle cage for road bike, bike crush, the cycling water bottle cage will not even crack, the weight-bearing capacity is very strong, worth having. The most important thing is that it is only 1.24oz (35.2g). It will not give you any extra burden during the ride, so you can travel easily. 【FLEXIBLE DESIGN】 The water bottle holder has arms that wrap around the bottle for a secure and firm hold so you don't have to worry about it falling out during your ride. Make sure a full water bottle is securely fastened while riding, whether you're riding fast on the road or on bumpy trails. 【Secure Grip Design】The 3.5" open structure delivers powerful clamping force to firmly hold 24oz bottles even on bumpy terrain, eliminating bottle ejection issues. Available in classic white/yellow to perfectly match any bike style and enhance overall aesthetics. 【One-Hand Hydration, Secure Ride】The 24 oz. large capacity water bottle with no-pull jet valve allows you to drink with a one-handed squeeze for a more focused ride. Open design ensures easy access and the bottle stays put. 【Leak-Proof Cycling Bottle】750ml leak-proof cycling water bottle features food-grade PP material and silicone sealed flip-top for 100% leak-proof performance, includes dust cover for hygiene, ideal for 2-5 hour rides.