D'Addario's Universal Strap Locks, designed by Ned Steinberger, give you the certainty and peace of mind that your instrument and strap are firmly locked in place. With hassle-free installation, our strap locks make it quick and easy to connect and remove your strap, leaving you free to move about the stage with confidence. • MFSKU PW-SLS-01 • UPC 019954239169