The Harken Carbo Ratchamatic block automatically switches from a light air free wheeling block to a heavy air ratcheting block seamlessly as the sheet load increases. The stout swivel base rotates on ball bearings. It always positions the cleat at the correct angle. The height of the Barney Post keeps the cleat at the proper elevation. It is always easy to cleat or un-cleat the mainsheet.

Includes:
• Custom hardcoat anodized aluminum Barney Post
• Harken mainsheet swivel base
• Harken ball bearing aluminum cam cleat
• Harken Carbo Ratchamatic block
• Stainless steel backing plate
• Swivel base to Barney Post fasteners
• Barney Post to cockpit sole fasteners

Materials:
• Post: Black anodized aluminum
• Backing plate: Stainless steel
• Cleat: Anodized aluminum cams on Delrin bearings

• Overall height: 16"
• Diameter of tube: 2-1/4"
• Base: 4" square
• Backing plate 6: square