Ernie Ball EB-4603 Strap Blocks, Black & Red, 4 pc
Secure your strap without locks - use Blocks!
Securely fasten your strap to any instrument with Ernie Ball rubber strap blocks. 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. Set of 4 pc.