Universal Cup Holder New clamp allows cup holder to swivel to keep contents level. Easily attaches to wheelchairs, rollators or walkers with tubing diameter from 5/8" to 1". Special clamp insert can be added or removed as necessary to accommodate different size tubing. Made with durable, lightweight plastic. Product Specifications BRAND: Drive Medical MANUFACTURERS PART NUMBER: STDS1040S DESCRIPTION: Universal Cup Holder LIMITED WARRANTY: 1 Year FOR USE WITH: Walkers, Rollators, Wheelchairs with Tubing Diameter From 5/8" to 1" SIZE: 3"W x 3"L TYPE: Walker Accessories PACKAGE QUANTITY: 1