BBnote focuses on developing educational toys all the time. About Our Magnetic Building Blocks, BBnote 54pcs magnet blocks contain 8 magnets and are compatible. Children can learn simple graphics while building their own world. It is a puzzle game suitable for families and friends to play together and enjoy playtime. It is a educational STEM toy. By building blocks, it helps to enhance imagination, hand eye coordination and creativity, improve the cognitive development. Packaging size: 10.4” L*1.4” W*6.5” H( 26.5 X 3.5 X 16.5 CM ) Cubes size: 0.98” L*0.98” W*0.98” H( 2.5 X 2.5 X 2.5 CM ) Suitable age group: 3+ age boys & girls