Ernie Ball Strap Blocks Guitar Strap Locks - Secure Guitar Strap System for Electric & Acoustic Guitars - Perfect for Live Performances & Studio Sessions

Securely fasten your strap to any instrument with Ernie Ball rubber strapblocks. Fits most strap button types and provides a tight fit without any modification to your guitar. Made of flexible, durable rubber that will slip over existing strap buttons for a secure connection.