Furniture Rehab D Ring Recliner Handle for 3mm Barrels. Handle Only. A replacement D ring handle, this handle can be easily installed to replace an existing handle by snapping a plastic inset over a slotted 3mm barrel, whereupon it will hold tight. Please note, the inset is attached to the handle before installation. It will break off at the hinge. It is meant to break off when installing over the cable 3mm barrel. See last image. Contact customer service for more information or bulk pricing.