Non leaking High or Low speed shaft seals maintenance free and needing no stuffing. Stops water from entering by the stern tube while allowing for shaft lubrication. Contains an Hypalon bellow, 4 stainless steel hose clamps, one carbon flange with water injection tube, and one stainless steel shaft ring with mounting screws and o-rings. 6.5'' long once installed. Three-year warranty. Shipping weight 3 lb.