D'addario PW-FLSB-04RD Flex Lock Strap Block red

D'Addario Flex Lock Strap Blocks are a hassle-free strap lock system designed for players who don't want to modify their existing strap pins. Simply slide the Flex Lock Strap Blocks over your existing strap buttons and you're ready to go. Made of flexible, durable rubber to ensure a secure connection, Flex Lock Strap Blocks fit most manufacturers' strap pins on the market and are available in black or red packs of 4. Inspired by the classic Grolsch bottle cap.