While wearing it, one gains double experience from burying dragon bones, babydragon bones, frost dragon bones, Adamant dragon bones and Rune dragon bones. This stacks with any bonus Prayer experience one has accumulated and Wisdom. However, it does not stack with Bonus exp weekends. It only works with burial, whether by hand or bonecrusher—offering bones to the Ectofuntus, an altar in a player-owned house or by Cremation is unchanged. Prayer experience gained with the effect of chewed bones active will not be doubled.