Keep your guitar secure and safe with Ernie Ball rubber strap blocks. These durable rubber rings fit on any size peg, keeping your strap from slipping or becoming loose. Their easy-install process requires zero modifications: simply attach the ring to both pegs on top of your strap and continue to play in complete confidence. AJ’s Music & The Music Man guitarists know that the occasional weathered strap is inevitable — keep those threats at bay with a 4-pack of Ernie Ball rubber strap blocks!