Chessex dice are made of a particularly dense material for a better feel when rolling, allowing for flatter faces and sharper edges.
This CHX 30065 Festive Hydrangea w/Black set contains one D20, one D12, two D10s (00-90 and 0-9), one D8, one D6, and one D4.
Size: 16mm - 20mm (5/8 inch - 13/16 inch).