1、UNIVERSAL BOTTLE HOLDER: The bicycle bottle holder fits most standard and oversized bicycle water bottles. Safe and sturdy bottle retention system ensures you keep the complete bottle firmly in place while riding 2、STAY HYDRATED WHILE RIDING: Quick and easy access to your bike water bottle when you need. Great for road, mountain, hybrid, touring and e bikes 3、STURDY AND SECURE: The arms of the bottle holder wrap around the bottle for a secure fit, so you don't have to worry about falling off during your ride 4、DURABLE MATERIAL: The water bottle cage is made of plastic and aluminum alloy, durable and lightweight, the smooth edge will not scratch your bottle 5、EXCELLENT PERFORMANCE: Made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stability ----------------------- Item Type: Bike Water Bottle Cage Material: Plastic, aluminum alloy Applicable Cup Diameter: Approx. 5.5 ~ 7.5cm / 2.2 ~ 3in Weight: 200 ~ 268 g / 7.1 ~ 9.5 oz(approx.) ----------------------- 1 x Mirror Holder1 x Hex Wrench1 x Cup Holder(composed of 2 parts)1 x Knob3 x Screw3 x Nut2 x Round Cushion