The SBR is different from standard batten receptacles in that it fits inside the batten pocket, making it invisible on the outside except for the small fastening plate - thereby almost completely eliminating chafe on the mast and rigging. Moreover the batten will be not on one side, but perfectly in the middle.
Each SBR includes: the main body; side plates to fix the receptacle to the sail; trimming screw for batten compression; the cap with a threaded hole to screw the receptacle in the toggle of the batten slider.