A dog bone is a short, structural rod that can be attached to the end of a line. It's used like a button or toggle to make a connection to another line, grommet or deck fitting. The tapered middle and symmetric ends make the part look like a bone, hence the name "dogbone."
The dog bone is a very convenient way for attaching the halyard line to the headboard, as you can maximize sail height without the added length of a conventional shackle. It also works well for jib and spinnaker sheets, outhauls, the connection of soft loops used for attaching blocks to deck fittings, and numerous other rigging applications. Unlike a knot, the dogbone connection does not jam up under tension and can be quickly attached or detached.
Tapered design keeps line centered
Unique grooved surface grips line and reduces slippage
Laser engraved for easy size identification
Recessed holes on ends keep leash knots captive and help reduce weight
Cross holes on both ends allow for attachment of leash or for lashing to both sides
Extra long leash included with each dogbone
Edge of cross hole is flush with bottom of recessed end hole to allow for easier insertion of leash