Ernie Ball Strap Fastening Blocks, Red & Black, 4-Pack
The most reliable and hassle-free instrument strap lock system ever devised. With no need to remove or replace the existing fixing buttons on your guitar you can securely fasten your strap with these rubber washer blocks.
Just slip the strap blocks over your strap buttons and that’s it! You’re ready to go, with your strap locked securely in place.
Strap Blocks work with most strap buttons on guitars, basses, mandolins, etc.. and come in convenient 4-packs containing two pairs of blocks.