Adjustable side loading cage to fit bottles 2-1/4" to 4-3/4" and can be mounted as left or right handed Keeps all sizes of bottles secure and great for tight spaces Any Bottle Cage (ABC) innovated water bottle cage can expand or contract as you need it, keeping your bottle secured and easy to reach Quick and simple to install and comes with 2 screws, which give it a firm hold when secured against the threaded holes on your bike's frame L-shaped adapter allows you to customize which side of your bike you can access your bottle from 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 to keep any bottle or containerĂ¹ or even a small speaker Bottom retainer allows you to customize which side of your bike you can access your bottle from. BOTTLE HOLDER SIDEWINDER ABC