(Shipping is invoiced after order is placed) Starting Blocks are the essential track and field equipment designed to give sprinters an explosive, powerful start to their race, which is crucial for maximizing speed and achieving personal best times. They provide a stable, angled platform that prevents slipping and allows athletes to apply maximum force into the track surface. • Forged aluminum pedals. 7" x 5 1/2" pedals. Adjust to 5 angles - 35, 45, 55, 60 & 65 degree settings. Black powder coated attractive finish. Wedged side plates lock into rail. • Sleek designed center rail. 3 1/4" wide. 3/8" extruded aluminum. Easy lock adjustment notches. Infinite adjustment locations. Scale down center rail. Easy space and visual adjustment. Carry handle for moving and storage. • Black powder coated end plates. Tapped to take regular track shoe spike size. Usable on any surface.