The bowl is made of natural stone. It is versatile and can be used for a variety of aromatic materials. Suitable for both room fragrancing with essential oils and using herbs or sachets. Bowl heats evenly and retains temperature for a long time. The bowl for heating is placed on the edge of the stove, and before steaming begins, a few drops of oil are dripped or dry aromatic ingredients are placed. The oils gradually spread in the steam room and do not burn. Adding oils directly to the stones of the electric stove is extremely harmful. The oil will start to burn and the sauna experience will be ruined.