The D'Addario patented Planet Lock system fits virtually any guitar and stays locked in place until you release the side pin. Unlike ordinary strap lock systems, the Planet Lock is designed to fit securely on your guitar's existing end pins, eliminating the need to change the hardware on your guitar. Plus, you can use the same strap on different guitars. The Planet Lock is safe, secure, and easy to use. 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 35" to 59.5" long.