Our dice sets are manufactured under strict security controls. Foil wrapped professional serialized casino grade dice and are acurate to .0001 and measure 3/4" each. Transparent with razor edges. Each set of dice are marked with serial numbers, transparent with razor edges. Precision casino dice are manufactured to exacting standards from high-quality plastic material that is free from defects and is usually transparent. The spots on their faces are made flush to ensure there is no imbalance to the dice. Precision dice are made with straight, sharp edges and corners. Casinos might choose to serialize their dice with embedded numbers and logos to guarantee authenticity. You will receive a quantity of 5 Dice (one stick)! Choose from RED, BLUE, GREEN OR PURPLE!