New Wave U.Go Plein Air Anywhere Model Side Tray, Recommended for use with U.Go Pochade boxes #00702 and #00703, Measures 4 x 8 x .5 inches (00708)Materials: The u. go Anywhere Side Tray is made using Baltic Birch wood. The Baltic Birch is hand sanded and finished with New Wave proprietary wood finish for maximum durability. The finish on the side tray is non porous, dense, and resistant to water as well as standard artist solvents and mediums. In addition, the finish is crack resistant, chip resistant, and non yellowing. Design: The side trays can be used to hold paint brushes and your medium