CREATIVITY BEYOND IMAGINATION - The 54pcs of 1.2" (3 centimeter) magnet puzzle cube sensory toy construction magnetic building block features hidden quick click magnetized connectors to allow intuitive play and fun educational STEM skill learning experiences. Facilitate problem solving and fine motor skills, spatial reasoning, logic training, critical thinking, hand-eye coordination, & child brain development, by promoting creativity. FREE IDEABOOK - with 30+ ideas included! LEARNING BY PLAYING - PicassoTiles has done it again providing an all-in-one experience enabling kids to play intuitively and learn to be artistic, creative, scientific, intelligent, technical, and architecturally sound all at the same time. INFINITE AMUSEMENT AWAITS - Whether you're enjoying it alone or with a group, the magnet cube building block toy promises boundless entertainment and a shared sense of accomplishment.