SPECIFICATION Quality: brand new Dimensions:20.5 x 14.9 Inches / 52 x 38 CM (500 pieces) 29.5 x 19.7 Inches / 75 x 50 CM(1000 pieces) PREMIUM MATERIAL Our jigsaw puzzles surface is made of paper and the bottom is laminated with wood. It has high hardness is not easy to break does not deform is durable and can be stored for a long time. FEATURE 1. Letter Partition English letters are printed on the back which can be divided into several pieces and spelled according to the letters to reduce difficulty. Of course if you want to challenge higher levels of difficulty you can choose not to use these convenient methods. 2. Fun Game Jigsaw is a fun indoor game. It is very suitable for meditation to improve the ability of constructing and solving problems. Allows you to play for hours or days! Entertainment puzzles can provide you with different and colorful results. Motor memory-puzzle games can enhance cognitive function. Current scientists believe that puzzles can make thinking more active distinguish colors more keenly and even reduce progressive memory loss. 3. Perfect Gift It is the perfect gift for birthdays Christmas and Thanksgiving. Pass on the fun and art of puzzles for adults and children puzzles are great gifts for family and friends.