The Board Size: about 450mm wide (45 CM), 280mm long (28 CM), 10mm thick (1 CM), the inside measurements are:
rectangle: 80.5x36.5mm, 2pcs;
oval: 430x10mm, slot: 9mm, 1pc;
oval: 245x10mm, slot: 9mm, 2pcs;
round: 62~80mm, slot: 9mm, inner diameter: 55mm, 1pc;
round: 84~100mm, slot: 8mm, inner diameter: 55mm, 4pcs.