These standard-sized black six-sided dice feature silver pips for numbering. While they follow conventional numbering (1-6), they are internally weighted to increase the probability of rolling a six. The likelihood of landing on six rises with the duration of the roll. When using three dice together, practiced users can regularly achieve a combined roll of 18. The weighting system doesn't guarantee sixes but significantly favors them over other outcomes. The dice maintain normal appearance and handling characteristics despite their modified rolling behavior.