Featherboards can be used with the fence or on the router table and can be flipped for operations in either direction. The durable polymer retains its flex memory and will not mar your workpiece. The exclusive built-in setup feather makes setting the tension fast easy and repeatable. Slides quickly into 1/4" T-tracks featured on all Bench Dog® Tools fences as well as most Rockler fences. Sold as a pair. Optional Miter Slot Adapter (sold separately) allows you to secure Feather-Loc® to any 3/8" x 3/4" miter slot.