The shot is put from a throwing circle of 2.135 metres inside diameter with a wooden stop-board or other suitable material in the shape of an arc at the front, shall be painted white, which is 1.14 – 1.16 metres long, 10 centimetres high and 11.2-13 centimetres wide, conforming to the arc of the throwing circle. The surface of the circle ideally should be concrete, asphalt or some other firm, non-slip surface bounded by a metal ring of at least six millimetres and sunk level with the surface of the surrounding ground. The surface of the throwing circle should be 1.4 to 2.6 centimetres below the top edge of the metal ring. The landing sector shall consist of cinders or grass or other suitable material on which the implement makes an imprint. The maximum allowance for the overall downward inclination of the landing sector, in the throwing direction, shall not exceed 1:1000.