Rock-N-Roller RSH6Q Quick Set Shelf for R6 CartsConvert your cart into a mobile workstation with the MultiCart Quick Set Shelf. The shelf is compatible with the R6G and the R6RT carts, and it mounts to the handlebars via the included four support bars and bolts into the pre drilled holes of the handles. The support bars can be permanently left on the shelf for easy mount or dismount of the shelf. The working surface of the shelf measures 39. 25 x 16", and it has a load capacity of 150 lb, so you