Heavy Duty 90 deg Track Radius for Sliding Strip Doors and CurtainsCompatible with RT 16 Straight Track ( simply snaps together ) Allows Hinged and Single Trolleys to Slide Around Radius Heavy Duty Galvanized Steel Includes two set screw holes at each end Can be drilled thru for direct attachment to ceiling. 24" radius Create Sliding Strip Doors or Curtains Call for options on Threaded and Ceiling Mount Styles Usually Ships within 2 business days.