Easy as ABC: The ABC (Any Bottle Cage) by BiKASE is an innovative water bottle cage that can expand or contract as you need it, keeping your bottle secured and easy to reach Lightweight and Durable: Made with engineered plastic, our bottle cage is feather light and tough enough to stand even the roughest downhill terrain without spilling a drop Easy to Use: Simply turn the knob to tighten or loosen the ABC from a small 2.25” to a wide 4.75”, giving you enough range to keep any bottle or container – or even a small speaker Mounting Options: Select the mounting option that fits your bike the most; if you've already got drill holes for a water bottle cage, you can opt for getting just the cage, or you can choose to get our tightening handlebar mount, or our slip-resistant strap About BiKASE: Our company was born out of a desire to provide cyclists with well-designed products that address the needs of all types of riders. We delight in designing and producing practical accessories to make your ride experience better and more enjoyable. USA Patent US2021/0155310 A1