Kraken Wargames Dice - Positive/Negative D6 Dice 16 mm (8 Dice in Tube)This set of 8 dice is the perfect solution for all games that require +x +x modifiers. The range of numbers allows modifications from 6 to +6 and is a perfect addition to any card game. The dice come in a size of 16mm, positive numbers are white, negative ones are black. Packaging is a handy plastic tube that contains 5 positive (+x +x) and 3 negative ( x x) dice.