Flex Lock Strap Blocks Black 4 pieces D'Addario PW-FLSB-04BK []

Flex Lock Strap Blocks are an easy-to-install strap lock system designed for players who don't want to modify their existing endpins. Simply slip it over your existing strap buttons and you're ready to use. Made of flexible and durable rubber, it fits most manufacturers' end pins on the market. Due to design changes by the manufacturer, external design, color, specifications, etc. may change without prior notice. This product is a product from a distributor in Japan (the product cannot be guaranteed by a distributor).