This mountain bike water bottle cage adapter is crafted from great aluminum alloy, ensuring durability and a lightweight design. It allows you to securely attach a water bottle holder to your bike, making hydration easily accessible during long rides. The sleek design seamlessly integrates with your bike's frame, enhancing both functionality and aesthetics. Features -Color:Light Grey -Material:Aluminum alloy -Size:7.50X1.30X0.80cm/2.95X0.51X0.31in (adapter parts) -Size:5.00X3.50X1.00cm/1.97X1.38X0.39in (adapter parts) -Size:5.00X0.50X0.40cm/1.97X0.20X0.16in (adapter parts) -Size:3.00X1.00X0.50cm/1.18X0.39X0.20in (black circle) -Size:3.20X0.60X0.60cm/1.26X0.24X0.24in (long screw) -Size:1.40X1.00X1.00cm/0.55X0.39X0.39in (short screw) -Size:5.00X1.50X0.20cm/1.97X0.59X0.08in (wrench) -Note: suitable pipe diameters: 22-40mm -Bottle cage holder adapter: crafted from great aluminum alloy, this bottle cage adapter reduces weight for a smoother and more enjoyable cycling experience -Quick installation: designed for easy setup, the adapter allows you to securely mount your bottle cage in minutes, saving time and effort -Bottle holder adapter: ensures your water bottle stays firmly in place, even on rough terrains, providing stability and safety during your ride -Unique: this adapter meets diverse cycling needs and adapts to various riding scenarios -unique fit: compatible with both horizontal and vertical bike tubes, offering flexible installation options for all types of bicycles Package list: 3 x bike bottle holder adapter 6 x long screws 9 x short screws 3 x wrench