The White Mountain Puzzles - Puzzle Sorter is a brand new item that allows you to organize puzzle pieces by your favorite system: color, pattern, theme, shape, etc. The ideal tool for the dedicated puzzler! The sorter includes six sturdy cardboard trays that keep your pieces sorted and your work area neat and safe from losing stray pieces. Make your puzzle building experience more enjoyable by getting a better view and easy access to all your pieces. These color-coded boxes also stack together allowing for easy and convenient puzzle-piece storage and transportation. With your pieces smartly organized and stored, you can save your work for later. Make the White Mountain Puzzles - Puzzle Sorter the perfect gift for puzzle lovers of all ages. And there's a bonus! A free mystery puzzle is found inside with each Puzzle Piece Sorter! – Bonus puzzle is suitable for ages 12 and up. Product dimensions: 10 x 12 x 2 inches. Made of recycled materials. Every White Mountain Puzzle product is proudly manufactured in America with a 100% customer satisfaction guarantee.