Patent ID: 8186684

Claim:
A form for constructing a thrower's circle comprising: a pair of half sections, each half section having an upper surface, a base surface, two full side members having a length, and two half side members, the full side members connected to the half side members substantially at right angles to form a rectangle with four corners, each one of the pair of half sections generally having the same dimensions, one full side member of each of the pair of half sections comprising an inside full side member and the other full side member of each pair of half sections comprising an outside full side member; a pair of semi-circles, each semi-circle having an open diameter, the open diameter being less than the length of the full side member, each of the semi-circles mounted on one of the pair of half-sections wherein the open diameter extends along the inside full side member of the half section; and means for securing the pair of half sections together along the inside full side members wherein the pair of semi-circles form a full circle; wherein the full circle has an inside circumference having a plurality of tubes affixed thereto, each of the plurality of tubes extending in a direction from the upper surface of the half sections toward the base surface of the half sections.