The new OCTO-CART by AquaCarts, Inc. is simply the best PWC cart on the planet!! The (8) huge 21x12 tires distribute the load of today €™s heavy PWC. The Octo-Cart comes standard with the new Heavy Duty Black Series Rims & metallic bushings. This maximizes the flotation to stay on top of sand and other soft surfaces, making the cart easier to pull. Part # OCTO Cart