What can we say? Magnatiles are the best quality, safest and most durable of all magnetic building sets. The brand that started it all is still the sturdiest, heaviest, and most reliable magnetic building block on the market and remains one of the safest magnet toys available. Building with Magnatiles improves hand-eye-coordination, dexterity, and promotes creative problem solving and imagination. We've tried them all and know in our hearts you're going to love Magnatiles the best and can promise you they will stand the test of time and attempted destruction!