Name ： Logs to expand aromatic wood Material quality ： Beech 、Walnut、 Rosewood 、 teak golden Dimensions ： Altitude 5.5cm , Diameter 3cm Method of use ： dripping natural essential oils in the groove at the top of the aromatic wood , Essential oil penetrates into wood , Wood absorbs essential oil , Slowly expanding incense , Long lasting , You can carry it with you . Scope of expansion ： within 1 metre Fit for place ： Office , Library ( desktop ) ， Bedroom ( Bedside ) ， Wardrobe , Inside , Travel