Wicca is a religion that involves rituals and spellwork. Practitioners choose altar supplies that are personally meaningful to focus their magic. While choices are individualized, common basic tools include an altar surface like a table, an altar cloth printed with a pentacle, candles (often black and white), bells of varying sizes, a brass cauldron for burning incense and mixing herbs, a wooden pentacle symbolizing protection, and a crystal wand for directing energy when casting circles and spells. Supplies are stored in a box when not in use.