The Bestsounds Guitar Strap Blocks are a set of 6 premium silicone safety locks in black and white colors. Made with high-quality materials sourced from China, these blocks are designed to securely hold guitar straps in place and prevent them from coming loose during play. The compact size of 3.94 x 3.94 x 0.2 inches and lightweight item weight of 0.705 ounces make them easy to carry and use on the go. Perfect for guitarists looking to enhance their playing experience with added safety and stability.