3 years & up. Build some really cool 3-D structures or 2-D patterns with the Magna-Tiles® ICE set! The tiles are colorless and transparent, making them a fun addition to other colorful Magna-Tiles® sets--they make great windows too! Each shape in this set measures 3" per side and comes with 16 pieces. The possibilities are endless! Included: 16 clear and colorless shapes including squares (4 small) and triangles (4 equilateral, 4 right, 4 isosceles).