magna tiles micromags 70 piece setMAGNA TILES microMAGS 70 Piece Deluxe Magnetic Construction Set. The ORIGINAL Magnetic Building Brand. MAGNA TILES pieces can do it all, including going small! The MAGNA TILES microMAGS line is the next evolution in magnetic building, but it's also 100% compatible with every MAGNA TILES piece that has come before it. These smaller pieces are great to play with on their own, and also provide added details to kids' builds with existing MAGNA TILES sets.