Manufacturer Camoo. No worry about buying! Included Components 1 x TSP-1 Transom Support Plate, 1 x TSP-2DP Transom Support Plate. SIZE — [ TSP-1 ]: 15″ X 2″, 3/8″ Thickness, [ TSP-2-DP ]: 12″ X 2″, Holes 10″, 3/8″ Thickness.