Rolls easily from storage to field on nonmarking rubber tires, with sturdy tube reinforcements and balance support to stand up to lots of hard play. Made of galvanized 1-1/4" OD tubing with heavy-gauge wire mesh. Backstop panel is 10'W x 8'H; side panels are 4'W x 8'H; top panel is 10'W x 4'H. Lays flat for storage. Backstop available with or without top and side panels. Truck delivery.