Decorator Riser Kit includes:12" tray10" tray24" tubing. Size can be under 1/2" under 24" Trays are clear with scalloped edges and have a sleeve in the middle to insert the clear tubing.Awesome Events Designer Tips1) To make decorator tray fit snug you can glue around bottom or if want to be able to remove for storage, wrap sleeve with clear packing tape.2) Add lights to the bottom and the top of the tubing. a. Sit bottom tray on top of a submersible light. b. Put tape over opening and sit light inside on the tape.