Dock Edge Inflatable Dock Wheel - Black Diameter:18" These hinges are very strong

These hinges are very strong yet have an unobtrusive low profile

Cast Aluminium Inlet & Exhaust Manifold

5 Exchanger 22" Long Body suits up to 400 HP

The bracket will not fatigue and break like aluminum models

Dock Edge Inflatable Dock Wheel - Black Diameter:18" These hinges are very strongSmooth rolling wheels offer substantial dock cushioning and feature molded in valves to adjust the level of firmness. Heavy duty hot dipped galvanized hardware mounts securely to the dock. Guides boats into your slip easily, regardless of wind and current conditions. Integrally moulded ribs both top and bottom of these wheels makes them valuable dock and boat protection and formidable guards against impacts. Available in three sizes: 9, 12 & 18 white