The Rock N Roller Wagon Bag is the perfect haul-it-all solution for R10 Multi Carts as well as the R8, R11, and R12 cart models. Constructed from durable 600Dpolyester, the removable bag slides right over the handles for easy installation and removal.The sides feature adjustable strapsto allow the bag to be used when the cart is extended to any length.The carthandles can still be folded down without removing the bag, and the straps can be buckled together around the bottom tokeep everything secure while storing thebag and cart.