Brain Teasers Toy-Wooden Tetris Puzzle

❤【CHALLENGING & FUN】 : This classical tetris puzzle toys can help Training imagination, improve eye-hand coordination and color & shape recognition. Get all the blocks back together on the board with different solution. Great fun for family and school, keeps the kids busy for hours. ❤【MATERIAL TYPE】: 100% Nature Wood (Made of Basswood,nature and healthy, unlike other cheaper material),Very durable and compact, no worries about breaking apart. This product is up to safety standard ASTM, CPISA, EN71, CPC.Come with an English version specification. ❤【FOR ALL AGES】This is a Traditional teaching mathematics in a jigsaw puzzle. There is no age limit,both adults and children are suitable.It can help increase the intelligence of the kids,to release the working pressure of the adults,to help prevent a decline in memory of the elderly, Enjoy hours of fun with you family and friends. ❤【COLORFUL & SIZE】: A set of 40 pcs with a board ,board size:7.1*10.78 inches, can spell out differen