The Portapuzzle has a unique lining that keeps the puzzle pieces in place and is also very suitable as a surface for puzzling. The Portapuzzle is light but sturdy and can be easily transported and stored. While puzzling, place the puzzle in the middle section of the Portapuzzle, and you can sort the pieces on the side panels and loose panels. When you have finished puzzling, place the loose panels over your puzzle, remove the pieces from the side panel, and then fold the side panels over the middle section. Close the middle Velcro strap and then the Velcro straps at the top and bottom of the board. You can now safely take your puzzle with you or store it until you resume puzzling. Suitable for most puzzles up to 1000 pieces with a standard size (± 68 x 49 cm).