Boat Hook Mooring Cover Support Plate Crown & Webbing StrapsCombine a Sea-Dog Boat Hook with the Support Crown and mooring cover support crown straps (#491115-1) for the perfect solution to nature's pooling pressures.Boat Hook Mooring Cover Support Plate CrownFeatures:Fits the tip of an adjustable boat hook (or any universal threaded device) to support a mooring cover or canvas topHelps eliminate pooling from rain, sleet or snowUV resistant injection molded nylon constructionWebbing StrapsThese Mooring Cover Support Crown Webbing Straps are used for positioning the Mooring Cover Support Crown (491110-1) securely in place. Includes three 15' straps, with a securing loop on one end and an adjustable snap clip on the other. They are designed to set once and then simply clip in and out later for ease of use.