The aluminum alloy construction of this bike bottle holder adapter provides exceptional strength and resistance to wear and tear. Its wear-resistant properties make it ideal for all weather conditions, ensuring performance. 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: aluminum alloy construction offers a great balance of durability and reduced weight for optimal cycling performance -Fast setup: the quick-install design allows you to attach your bottle cage effortlessly, ensuring a seamless riding experience -Bottle holder adapter: keeps your water bottle firmly in place, even on uneven trails, enhancing safety and reliability -Convenient: practical and convenient, this adapter is ideal for diverse cycling environments -Flexible installation: compatible with different bike tube orientations, providing easy and versatile mounting options Package list: 2 x bike bottle holder adapter 4 x long screws 6 x short screws 2 x wrench