This product is a set of Race Ramps designed for auto maintenance. The ramps are made of black foam and manufactured by Brute Technologies. They are likely used to elevate vehicles for maintenance purposes. Ramp head is 24" in length, ramp riser is 56" in length. Both sections 14" wide. Riser starts at 1/2". Head rises to 10". Head will raise vehicle 9 1/2" off floor. A set has 2 ramps. Each ramp supports 1500 lbs giving 3000 total support. 2 pieces benefit after parking vehicle on head section, riser section can be removed giving access to vehicle under side.