"With this ShoreDocker Boat Ramp Kit, there is no dock required. Just add your own pressure-treated lumber for an affordable alternative to expensive cantilever or vertical lifts. Color Gray rollers, Common Usage Boat ramp, Includes Rollers, brackets, winch, cable, Size 16-20, Capacity lbs. 1,200. Easy to customize to your needs and works in shallow water Accommodates smaller boats, sailboats and personal watercraft up to 1200 lbs. Includes 12 rollers, 1100-lb. winch and 33-ft. galvanized cable with hook and hardware Lumber not included"