The Ernie Ball Rubber Strap Blocks are a simple and reliable way to keep your guitar or bass strap securely attached without the need for permanent modifications. Made from durable, flexible rubber, these strap blocks slip easily over your existing strap buttons to create a snug, secure fit, giving you extra peace of mind while performing or practising. Designed to fit most standard strap button types, Ernie Ball Rubber Strap Blocks provide an affordable alternative to traditional strap lock systems. Installation takes just seconds, with no tools, drilling or hardware changes required, making them ideal for players who want added security while preserving their instrument. Compact, lightweight and available in a range of colours, these strap blocks are perfect for guitars, basses and other strap-equipped instruments, whether you're on stage, in the studio or at home. Oxygen Music are proud to stock a wide range of Ernie Ball accessories, including the Rubber Strap Blocks.