Davis Secure Removable Chafe Guard Pair Chafe protection is critical at the dock, at anchor, or on a mooring. The Chafe Guard is a good solution to prevent chafing over a cleat, cap rail, where two lines cross or at the anchor roller. Dock lines can be expensive extending their life with good chafe protection is not. Removable Chafe Guards fit 38 to 78 line 10 mm to 23 mm. Great for anchor lines or mooring pennants, where chafing through a line could cost you the boat. Velcro brand hook fastener