This Set of 7 with Arch d4 in Artificers Ingen symbol includes Arch d4 d6 d8 d10 d percent d12 and Balance d20 Role 4 Initiative dice average about 25 percent larger than traditional dice and come in a plastic display box The Arch d4 is a uniquely shaped die that features large top face numbers and is easier to read pick up and roll The Balance d20 has a unique arrangement of numbers so that any 5 adjacent sides add to either 52 or 53 to ensure the most even distribution of outcomes Features . Diffusion artificers ingen SPR dice. Set of 7 Specifications . Material Plastic