This extra large d20 is about 30mm from face to face for those important rolls! Large high-visibility game dice: By royal proclamation, we introduce Diffusion Duchess' Decree! This Diffusion 3 offering contains jewel tones of Royal Purple, Sky Blue and Rose Pink, with bright white numbers for high visibility. Dedicated to our dear friend, the Duchess of Dice! Grab one of these XLd20s for that big monster roll!