The wooden puzzle blocks are made from natural and healthy basswood with high quality and smooth surface. Non-toxic paint ensures safe play.The Tangram Brain Teaser Wooden Puzzle Game has multiple sample shapes and things to do with, each time you mix the pieces the puzzle comes out differently. such as a gun, human, robot, tree, umbrella, flower, pyramid, airplane, etc. The simple design and bright colors are perfect for sparking any imagination, and it's nice to challenge the kids 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 need to calm down or relax.Geometric Assembling Russian Blocks use common geometric patterns and colors to keep kids busy for different building options game. Solving it on their own helps keep kids' brains focused and adds creativity to hand-eye coordination and color & shape recognition. It's better than on the screen!Great wooden intelligence puzzle 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.