Oakie Doakie Dice RPG Set Metal Dice Mercury: - Rules of Play says:
The Role-playing Game Sets consist of 7 different dice: D6, D4, 2x D10 (steps of 1 and steps of 10), D8, D20 and D12. They come packed in strong boxes with extendable shelves so you can easily take them with you and play wherever you want to.