Stand-up universal joint.Preferred by single-handed yachtsmen. This windsurfing style universal joint returns the tiller extension to a vertical position when not in use. Fit E-DIABOLO accessory to upgrade a standard EA or EJ extension.FeaturesSpare part for Spinlock tiller extensions fitted with diabolo jointsAlternative to the E-JOINT and E-JOINTGP universal joints fitted to EA and EJ tiller ExtensionsUsed by short-handed sailors to keep the tiller extension clear from obstruction while steering by autopilot through manoeuvresUsed in Mini Transat, Class 40s, Figaro, Open 60s and many other boats that are predominantly tiller steered by autopilotDownloadInstallation Guide .input-wrapper a { text-decoration: none; / Removes underline / background-color: transparent; / Ensures no background color / } .input-wrapper a:hover { text-decoration: underline; / Adds underline on hover / background-color: transparent !important; / Removes grey highlight / }