professional art supplies storage bag with shoulder padded strap, large painting travel tote bag for paints,paint brushes/pen/pencil, pallet,sketchbook,paint bucket,8k sketch paper (newspaper) bxt there are two steel wire inside to help you keep/fix the box shape <br><br> * plus words: you can place an paperboard on the box bottom, so it will be more flat and handy to use, especially when it work with luggage cart