Our beautiful wooden aromatherapy reed diffusers are individually handmade from native Oregon hardwoods. Handmade from Oregon Black Walnut. The set includes a glass vial insert for holding essential oil and a cork to seal the vial when the diffuser is not in use. The glass vial can be removed for easy oil filling. After fine sanding, multiple coats of finish are applied to enhance the wood grain and also protect it from any spills of diluted essential oil. Handmade; each is unique. Approx. dimensions are 4 1/4 in. tall and 3 in. wide. Limited Edition. Essential oils, bamboo reeds, and diffuser base oil are sold separately. Also doubles as a bud vase or weed pot!