The wooden puzzle blocks are made from natural and healthy basswood with high quality and smooth surface. Non-toxic paint ensures safe play. It contained 40 pieces with a board of reasonable size (length: 10.6 inch, width: 7 inch, height: 0.2 inch) each time you mix the pieces, the puzzle comes out differently, like a gun, a human, a robot, a tree, an umbrella, a flower, a pyramid, an airplane, etc.The simple design and bright colors are perfect for sparking any imagination, and it's great to challenge the children with this tangram puzzle, but also to complete an easy challenge that you can complete differently each time. Perfect for those times when you or your child just needs to calm down or relax. Geometric Matching Russian Blocks use common geometric patterns and colors to keep kids busy for different play options. Solving it by themselves helps keep kids' brains focused and adds excitement creativity to hand-eye coordination and color & shape recognition. It's better than on the screen!Great wooden brain teaser for kids and great toy for adults. This traditional math teaching puzzle is still attracted to young children and the elderly. Perfect ultimate gift idea as a Christmas gift/Birthday gift/Festival gift.