Start it! Store it! Enjoy it! This must-have puzzle accessory allows you to stow your puzzle without losing your progress. Simply puzzle on the premium felt mat, inflate the tube, roll it up and secure your puzzle inside with the two straps. Unroll it when you're ready to continue puzzling to find your puzzle completely intact! Instead of leaving your in-progress puzzle out, you can use this handy kit to keep pieces organized and in place. The mat measures 46 x 26 inches, to fit puzzles up to 1,500 pieces.