The Ernie Ball Strap Blocks are one of the easiest and most affordable ways to prevent your guitar strap from accidentally slipping off during practice, rehearsal or performance. Made from durable, flexible rubber, they fit over your existing strap buttons to create a secure hold—no tools, drilling or permanent modifications required.
Suitable for most electric, acoustic and bass guitars, they're a simple upgrade that gives you extra confidence every time you play.
Not every guitarist wants to install metal strap locks, especially on a new, vintage or high-end instrument. Ernie Ball Strap Blocks are the perfect solution. They slip over your existing strap buttons in seconds, keeping your strap securely in place without drilling, replacing hardware or permanently modifying your guitar.
They're also incredibly practical if you own multiple guitars. Instead of fitting locking hardware to every instrument, you can simply move the Strap Blocks between guitars or straps as needed. For the price, they're one of the cheapest upgrades you can make, and potentially one of the most valuable if they prevent your guitar from hitting the floor.