About the D'Addario 50BAL00 Auto Lock Guitar Strap, Black:
 
The 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. From iconic themes to unique patterns and artwork, these durable straps are sure to accent any guitar and are adjustable from 30” – 55” long. Designed in collaboration with Ned Steinberger.