The Nitro Sprint and Glide Cup Holder is designed to fit on all Nitro Sprint Rollators and Nitro Glide Knee Walkers with built-in accessory mount to provide convenience at every turn. Fits on all Nitro Sprint Rollators and Nitro Glide Knee Walkers with built-in accessory mount. Securely holds cups, water bottles, and travel mugs all at an arms reach