Planet Waves 50PLC01: a result of years of research, the patented design of the Planet Lock Strap fits virtually any guitar and stays locked in place until you release the side pin. Unlike ordinary strap lock systems, the Planet Waves 50PLC01 Planet Lock is designed to fit securely on your guitar's existing end pin. No need to change end pins or worry about whether the lock will stay in place. The Planet Lock is safe, secure, and easy to use. Planet Waves 50PLC01 Planet Lock strap features: Improved design 60% smaller strap ends Fits any Guitar or Bass without modifications 50mm wide Durable Nylon material 50PLC01 50mm Planet Lock Strap - Rock Star