The fastback block is designed to be used with the PGHDP range of double loop hooks with metal plate. This range of hooks is perfect for tight spaces such as under shelves and is designed to save time by helping you place or move hooks on display without removing surrounding shelves, hooks or other merchandise. It’s an excellent system, easy to use and great for moving products around your pegboard. Also available for wooden pegboard (PGFCP2WE) or flat metal pegboard (PGFCP3GY).