Features 1、This strap locks are made of qualified silica gel, high strength with good tenacity, ensures a long time service. 2、Work with most strap buttons. it can prevent your guitar strap from falling off. 3、 Easily slip over strap buttons. No need to remove or replace existing strap buttons on your guitar. Easy to install. 4、 Lock your strap in seconds. Nothing mechanical to break or wear out. Don't need to buy a special connector for each strap and guitar. 5、Great accessory for acoustic guitar and electric bass. Specification Features: This strap locks are made of qualified silica gel, high strength with good tenacity, ensures a long time service. Work with most strap buttons. it can prevent your guitar strap from falling off. Easily slip over strap buttons. No need to remove or replace existing strap buttons on your guitar. Easy to install. Lock your strap in seconds. Nothing mechanical to break or wear out. Don't need to buy a special connector for each strap and guitar. Great accessory for acoustic guitar and electric bass. Specifications: Condition: 100% Brand New and High Quality Material: Silica Gel Color: White + Black + Red + Blue Outer Diameter: Approx. 25mm / 1inch Inner Diameter: Approx. 9mm / 0.3inch Thickness: 2.9mm / 0.1inch Quantity: 4 Pair (8 Pieces) Weight: Approx. 13g Package Included: 4 x Pair of Strap Locks