Contains one of each of the following: a 4-Sided Die (D4), 6-Sided Die with numbers (D6), 8-Sided Die (D8), 10-Sided Die (D10), 10-Sided Percentage Die (D10, used with a regular D10 to generate a number from 1-100), 12-Sided Die (D12), 20-Sided Die (D20). Great for Role-Playing Games.