This is a colorful, lightweight and kettle holder for most bikes that can easily fit into a water glass with a rounded edges that won't hurt your hand. Features: Using polycarbonate material, it has fine strength and toughness, extensibility, stability and scratch resistance. Quick and easy access to your bike water bottle when you need it. Fits most standard bike water bottles. Integrated molding design, smooth line. Easy to install and disassemble, quick-release bottle holder hugs your water bottle firmly to prevents drop during cycling. Specifications: Color: black, red, blue, white, yellow (optional) Material: polycarbonate + glass fiber Item size: 141 * 62mm / 5.6 * 2.4in Item weight: 30g / 1.1ounce Package size: 180 * 80 * 80mm / 7.1 * 3.1 * 3.1in Package weight: 35g / 1.2ounce Packing List: 1 * Bicycle Cup Holder