8" x 8" (5 lugs), 10" x 8" (5 lugs), 12" x 8" (6 lugs) & 13" x 8" (6 lugs) projector Drums. Height adjustable aluminium Harness with padded shoulder and abdomen supports. Black hoops and bottom edges. Angle cut bottom of shells increases projection and reduces weight. All fittings included.