Bike Water Bottle Holder Carrier Bicycle Drink Container Cage Bracket 2 Pack New Description： 4 SCREWS INCLUDED,: The screws are standard size for water bottle mounts, and washers are suggested for tight fixing 6061-T6 HEAT-TREATED ALUMINIUM ALLOY: High quality material and manufacturing process for extra strength and durability combined with low weight, 2.1 oz (61g) each EASY INSTALLATION: Use a 4mm hex key (included) to fasten cages in screw holes on frame. PLEASE NOTE - bike frame requires threaded holes for installation of cages WATER BOTTLES FIT: 26 OZ water bottle can fit snugly; max bottle diameter is 3"(762mm). The water bottle cage 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. Specifications: Material: 6061-T6 HEAT-TREATED ALUMINIUM ALLOY Net Weight: 2.1OZ (61g) x 2 pack Dimension: 72mmx62mmx150mm (LxWxH) Accessory 1#: 4 Screws + Washers INCLUDED Accessory 2#: 1 x 4mm Allen Wrench INCLUDED PLEASE NOTE - bike frame requires threaded holes for installation of cages Features: A good accessory for cycling sports. Ultra-light weight for reducing burden . Tight grip for your drink bottle. Won't rust, break, or scuff with the metal material. Brings much convenience for your outdoor sports and travel. Simple and practical design, easy to carry. Pacage Included: 4 x Screws 1 x 4mm Allen Wrench 2 x Bike Water Bottle Holder Bike Water Bottle Holder Carrier Bicycle Drink Container Cage Bracket 2 Pack【Service】 If you have any questions, please feel free to contact us and we will answer your questions as soon as possible. Description： 4 SCREWS INCLUDED,: The screws are standard size for water bottle mounts, and washers are suggested for tight fixing 6061-T6 HEAT-TREATED ALUMINIUM ALLOY: High quality material and manufacturing process for extra strength and durability combined with low weight, 2.1 oz (61g) each EASY INSTALLATION: Use a 4mm hex key (included) to fasten cages in screw holes on frame. PLEASE NOTE - bike frame requires threaded holes for installation of cages