Circle is constructed of 3/4" plywood with steel hinges and handles. Foldaway handles for easy handling and storage
Wood shot toeboard is laminated weather proofed marine plywood.
Optional throwing surface consists of three pieces of 3/4" 7 ply birch plywood that fastens to the underside of the circle to provide the athlete with a smooth hard surface inside the circle.
Meets NFHS, NCAA and IAAF specifications.