Your focus should be on the music, not whether or not your guitar strap will be able to hold your beloved guitar. Our guitar strap locks could save you a lot of money, time, and energy in instrument repair bills. With a simple installation process and inexpensive cost, Ernie Ball Super Locks keep your guitar or bass safe and sound. Guitar strap locks are one of the most important guitar accessories you can buy. Made from nickel plated steel. Complete 360 degree secure connection. Robust mechanics providing maximum durability. Set of 2. Pilot hole: 7/64" Diameter, 1 1/2" Deep.