Auto lock guitar strap from D’Addario. Auto Lock Guitar Strap is a simple integrative strap locking system built for your performance. The latch is spring-loaded, so it automatically clamps down on the strap button and will not release unless desired. The D'Addario Auto Lock Guitar Strap works with most strap buttons on the market. Designed for players of all genres, D'Addario woven straps offer designs that will please even the most discerning player. Designed in collaboration with Ned Steinberger.