D’Addario Auto Lock Polypropylene Guitar Strap is the simplest integrated strap locking system for your performance. Simply slide the strap end over the guitar strap buttons and you are locked in – it’s that easy. The latch is spring-loaded so it automatically clamps down on the strap button and will not release until you want it to. Just push up on the latch, slide off the end, and the strap is removed. D’Addario Auto Lock Polypropylene Guitar Strap works with most strap buttons on the market. Designed in partnership with Ned Steinberger for players of all genres, D’Addario Polypropylene straps offer designs that will please even the most discerning player.