The Retro-Fit End System for our Funtimbers contains two (2) Retro-Fit Ends and two (2) Filler Ends. By using the Retro Fit Ends, you can customize perimeter lengths. To use, simply cut the Funtimber to length and insert the Retro-Fit End to create the desired length. By using the Filler Ends, you get a finished appearance, which can be flush mounted to existing walls, fences, etc. Weight: 10 lbs.