Magnetic Tiles Dome Pack 18 PieceOur new 18 piece pack contains uniquely rounded triangular pieces, that when joined side by side created a perfect half circle on a base built from two trapeziums. The shape can be expanded to a full sphere or ball shape if desired. The shapes allow endless build options with the dome pieces being able to be used individually or together. Our NEW 18 piece set includes: * 6 red curved triangles * 6 green curved triangles * 2 orange trapezium * 2 blue