1、Easy to install without any guitar modification, convenient to use. 2、It can be screwed securely into locking position. 3、Suitable for all kinds of electric guitars. 4、2Pcs coming in a package is just what your guitar needs. Very practical 5、Metal construction, anti‑corrosion, high glossiness appearance, durable for long time use. Features: Easy to install without any guitar modification, convenient to use. It can be screwed securely into locking position. Suitable for all kinds of electric guitars. 2Pcs coming in a package is just what your guitar needs. Very practical Metal construction, anti-corrosion, high glossiness appearance, durable for long time use. Specification: Condition: 100% Brand New Material: Metal Quantity: 2Pcs Dimension(L x W): Approx. 5 x 2.2cm/2 x 0.9in Weight: Approx. 43g Packing List: 1 x Pack of 2Pcs Guitar Strap Locks Installation: Release the fastening nut from the strap lock, screw in the pin on the guitar; Make sure the pin is tightened, then lock the strap to the strap lock button; Insert the fastening nut into the strap lock.