Sea-Dog Hook Mooring Cover Support Crown Boat. The unique configuration has strap or line attachment details designed to secure the support crown in the correct location eliminating problems caused by water pooling from rain sleet or snow. Combine any Sea-Dog Boat Hook with the Support Crown 491110-1 and mooring cover support crown straps 491115-1 for the perfect solution to nature's pooling pressures. Specifications for Sea-Dog Boat Hook Mooring Cover Support Crown: Manufacturer: Sea-Dog Color: Black Features of Sea-Dog Boat Hook Mooring Cover Support Crown Fits the tip of an adjustable boat hook (or any universal threaded device) to support a mooring cover or canvas top Helps eliminate pooling from rain sleet or snow UV resistant injection molded nylon construction Combine 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 Package Contents: Sea-Dog Boat Hook Mooring Cover Support Crown Sea-Dog 491110-1: Hook Mooring Cover Support Crown Boat