Heavy duty structural pvc storage racks for the BOSU and Bosu Pros. Carts allow for easy access to Bosus from either side. Cart''s feature heavy duty locking casters. They are available in two sizes the Club and Studio model. The Club mode (sku: F1BBR012)l stores 12 inflated BOSUs and is 65" x18" x 66" tall. The Studio model stores 6 inflated BOSUs and is 33" x18" x 66" tall.