1. PC Material: The bicycle bottle cage is made of quality PC material, making it robust, durable, and elastic with toughness. 2. Wide Applicability: The composite plastic is strong and flexible, suitable for various bottle sizes. It is compatible with 5001000ml water bottles, including sports bottles, PET bottles, and beverage cans. The bottle holder weighs only about 49g, ensuring a lightweight feel while riding. 3. OnePiece Design: The cup holder features a onepiece/monolithic molding process, resulting in smoother curves and more reliable quality. The smooth edge design prevents bottle scratches, while the sturdy arms and base securely hold the bottle, eliminating worries about it falling during rides. 4. 1Minute Assembly: Includes screws and an Allen key for easy installation. The bottle holder can be quickly assembled or disassembled in just one minute, saving time and effort. Note: The bicycle frame must have predrilled threaded holes with a spacing of approximately 65mm.