I built my own light box. Had a 20" square of plexiglass cut at the local shop. Bought 4 plastic glasses from WalMart and an under counter light from the hardware store. Put the glasses under the 4 corners of the plexiglass the light underneath and your ready to draw. I also have a 36" square that I use 8 glasses and two under counter lights. works like a charm and the glasses stack to store and the plexiglass stands up right behind my cutting table, the lights in a drawer. Also travels well. Made a cardboard carrier for the large plexiglass by duct taping two pieces of cardboard together. The glasses and lights go in a bag.