Guardian Industrial Products CR-01-27-27-P-TS6 Aluminum Curb Ramp 27" x 27" Portable curb ramp for material handling and shipping Dolly carts Aggressive, small punch-plate, heavy duty traction surface with 750 lb capacity Built-in carrying handles, raised side rails, and attaching lip Works great for curbs up to 8" High in any weather condition - rain, snow, Mud or shine! Strong all-aluminum construction - 27" X 27" - made in the USA