The puzzle caddy provides a stable surface for assembling your jigsaw puzzle. The caddy includes trays that allow you to sort the pieces. If you need to store the puzzle before completion set the trays inside, fold the caddy, and secure the velcro straps on the outside. This will hold your puzzle together and allow you to store it without disassembling the puzzle. This caddy will hold most puzzles up to 2000 pieces. The manufacturer is currently out of stock on this item and they do not know when it will be available again. Please check back for updated delivery status.