Feature: 1. Lightweight Design: Weighing only 39g/1.38oz, this water bottle holder won\u0027t add any unnecessary weight to your bike. 2. Universal Compatibility: This holder is suitable for various cycling water bottles, as well as most cola bottles and mineral water bottles. 3. Easy Installation: The holder is designed for easy installation, making it convenient for all users. 4. Sturdy and Reliable: Made of bulletproof vest material, this holder is safe, reliable, and sturdy. 5. Unique Double-Sided Treatment Process: The holder features a unique double-sided treatment process, with a partially polished bright surface and a partially frosted surface. Specification: This lightweight bike water bottle holder is a must-have for any cycling enthusiast. Made from solid material, it offers easy installation and is sturdy and reliable. The holder is also compatible with various cycling water bottles, as well as most cola bottles and mineral water bottles. Features: Lightweight Design: Weighing only 39g/1.38oz, this water bottle holder won't add any unnecessary weight to your bike. Universal Compatibility: This holder is suitable for various cycling water bottles, as well as most cola bottles and mineral water bottles. Easy Installation: The holder is designed for easy installation, making it convenient for all users. Sturdy and Reliable: Made of bulletproof vest material, this holder is safe, reliable, and sturdy. Unique Double-Sided Treatment Process: The holder features a unique double-sided treatment process, with a partially polished bright surface and a partially frosted surface. Specifications: Colors: Red, Yellow, Blue, Black, White (Optional) Material: Polycarbonate and Glass Carbon Fiber Weight: 39g/1.38oz Package List: 1 x Bike Water Bottle Holder Package List: 1 x Bike Water Bottle Holder