The connector tubes for the “Click-A-Cuff” system come in two different lengths. A 6 inch tube and a 12 inch tube. Connector tubes are sold individually to be mixed and matched too your liking. The cost is $16 each. They are only available in silver. Use one connector tube to click together two cuffs. Use two 12 inch connector tubes with the “Bow-Tie” collar and cuffs to create the “Secretary”. Use two tubes and cuffs with the “adjustable sleeve” to create a rigid spreader bar. There are many possibilities.