Selden Main Halyard Locks are perfect for making sure your mainsail is always hoisted to the correct measurement, making for accurate and repeatable settings.
Halyard locks also reduce mast compression, and keep sails at the same hoist independently of mast bend. These advantages make halyard locks the clear choice for many high performance dinghies.
This particular lock is designed to be mounted internally, and is suited for use with 2mm 7x19 stainless wire.
Constructed of Aluminum Alloy for optimal weight savings aloft.