√ Building blocks developing kids' creativity. Children can acquire a strong sense of color, geometrical shapes including 3D forms numbers counts, magnetic polarities & architectural design at an early age. √ Magnetic building blocks are easy to construct and easy to put away for storage. Fully compatible with other brands. √ Magnetic building blocks inspire children's manipulative ability, imagination and creativity, problem-solving, social skills, motor skills. √ Recommended for ages 3 years and up. Good gift kids toy for 3+ year boys and girls! √The Magnetic toy comply with the following requirements: European Standard: EN 71-1:214A1:2018 American Standard: ASTM F963 -17