Unique Design: strap lock system use double-deck structure design with two screws. One key to lock and unlock, quick release guitar strap to release/install by lightly press the lock, easy to install, convenient to use. High-quality Materials: Made of high-quality Metal material ,this strap locks is durable for long time use and features anti-rust and anti-corrosion.Adopts exquisite craftsmanship with fine appearance.A great gift for guitarist. Keep Your Guitar Safe: 1 Pair (2 strap locks) guitar strap locks connect positively to your strap and your guitar is safe with it. You can play your guitars freely on stage. Easy to Install/Detach: metal strap button is easy to install and disassembe,adopts design to prevent guitars falling off,fix on your guitar tightly while use. Wide Application: strap locks fits for acoustic guitar, electric guitar, bass guitar, classical guitar, ukulele, banjo etc. Product Dimensions:7 x 7 x 3 cm Item Weight:80 g Colour:A:Black Material:zinc alloy Package Contents: 1 Pair * Strap Locks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.