Wooden Intelligence Game 3D Wood IQ Puzzle Brain Teaser Magic Tetris Cube 54 pcs Expand Your Brain-- This 3D wooden brain teaser puzzle is special design for problem solvers, game lovers and puzzle enthusiast for the intellectual challenge. The T-shape wooden piece puzzle delivers lots of fun and mystery. Relax Your Stress-- This is not only a educational toy but a pressure-released puzzle. It provides a tough challenge also help you to relieve stress, relax your mood and enjoy brain stimulation.