Thanks to this functional shopper you always have a bag with you. You simply attach it to the frame of your rollator with Velcro. You can properly store your personal items or purchases in the shopper bag, that has a capacity of 22 lb / 5.2 gal. The bag measures 17 1/3" x 9" x 2 1/3". At the back of the water-repellent bag there is a zippered pocket, where a wallet can be stored. This shopper fits the Rollz Motion, Rollz Motion Performance, Rollz Motion Rhythm and Rollz Motion Electric.