【100% Natural Basswood】Our tangram puzzle is made of solid basswood, the blocks are sturdy enough with a thickness of 0.6 inches, while ordinary blocks are only 0.19 inches with inferior pine. Non-toxic paint, odorless, no burrs, in line with US CPSIA & ATSM safety standards.【Parent-child interaction】Using geometric patterns and bright colors, keeping children and parents busy with various options to play with. Parents randomly drop blocks from the top opening, children make puzzles with blocks they get from the corner. Ergonomic backrest design, nurturing the child's growth. Just like Tetris without a screen and time limit!【Various shapes and challenging fun】Unlike ordinary block puzzles, we offer a cute crocodile board, various pattern combinations possible, fish, shape, tree, flowers, house, giraffes, guns, Rubik's cubes. Making shapes to practice fine motor skills, spark all imagination and creativity.【Creative brain toy】Your children try to fit pieces on the board, their attention is focused, brain and intelligence are developed, logical thinking skills are exercised, spatial awareness is formed by building Rubik's cubes, from flat to 3D cognition, opening up a new concept of space.【Classic leisure option】No one loses the love for tangram puzzles, never outdated, pleasant distraction for children and adults to put down electronics. Sensory toy fidget toy for children, stress reliever for anxious adults, to help slow down memory decline in the elderly. Perfect birthday gift Christmas gift![EN]