Circle is constructed of 3/4" plywood with steel hinges and handles. Foldaway handles for easy handling and storage
Optional throwing surface (3681) 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 (not shown in image). 368 and 3681 are sold separately
Indoor Throw Circle is compatible with GILL Synthetic and Aluminum Toeboards, sold separately
Meets NFHS, NCAA and World Athletics specifications.