What's in the box:

2pcs Guitar Strap Locks Metal Security Quick Release Strap Buttons Retainer Silver for Acoustic Electric Guitars Bass (Black)

Features:
Guitar strap locks with special security locking system.
Strap can be released quickly by pressing the side button.
Compatible with electric guitar, acoustic guitar and bass.
Metal material and plating surface, durable and anti-rust.
Simple installation and convenient usage, a great assistant tool for guitar players.

Specifications:
Color: Silver/Black/Golden(optional)
Material: Metal
Item Weight: 35.5g / 1.3oz(Single)
Package Size: 8.2 * 8.2 * 3cm / 3.2 * 3.2 * 1.2in
Package Weight: 85g / 3oz

Package List:
2 * Strap Locks