SAFEMade of environmentally friendly ABS, absolutely non-toxic, meets US ASTM F963 toy safety standards. Smooth edges avoid scratching your hands. Compatible with other blocks of similar size.EDUCATIONALThese toy blocks come with an easy assembly manual, color and shape recognition, hand-eye coordination, creativity and imagination, motor skills, logical thinking and problem solving. Capacity, construction and design ability are developed while playing.INTERACTIVEIt's a great toy for adults and children to participate together, have hours of fun with parents ! Laugh, build and create unforgettable moments of working on projects with your children. Get closer to them and let the kids no longer indulge in electronic games.BEST GIFTSIdeal gift for boys and girls. The best choice for children's/children's birthday and Christmas gifts!QUALITY SERVICEIf you have any questions about the products, please let us know. we will be happy to help you.