This one piece unit has 6 positions from a 0 degree to 30degree incline. Just pop the spring loaded pin in any of the 6 positions and you're ready to go. The foam padded board is 16" x 44" and is covered w/ a heavy marine grade vinyl. Ankle and knee pads are fully padded for comfort and support. Black powder coated finish. Pad color options black or gray. Dimensions 72" D x 20" H X 40" H.