Serious puzzle enthusiasts, this Trefl puzzle sorter is an absolute game-changer for your hobby! The set includes six matching containers, each measuring 7.5x7.5 inches (19x19 cm), providing ample space for sorting and storing your puzzle pieces. The anti-reflective mat surface inside each container is brilliant - it eliminates light reflection so you can easily see each piece without eye strain. Made from durable, safe materials, these containers are perfect for puzzles with large numbers of pieces, helping you stay organized throughout the puzzle-building process. The sorting system makes it so much easier to separate pieces by color, pattern, or edge pieces, saving you time and frustration. When you need to pause your puzzle, the containers stack neatly for compact storage, and the secure lids prevent pieces from getting lost. The entire system saves space and makes transporting puzzles much easier - no more carefully moving entire partially-completed puzzles! Trefl is a family company that's been making quality puzzles since 1985, so you know you're getting a well-designed product. Whether you're an occasional puzzler or a dedicated enthusiast, this sorter makes the entire experience more enjoyable and organized. It pairs perfectly with Trefl's puzzle mats and glue for the ultimate puzzle-solving setup. A fantastic gift for any puzzle lover in your life!