This 'glide' diffuser refill allows you to top up your Carrol Boyes diffuser and keep your favorite fragrance lingering in the air for longer. When the oil in the diffuser runs out, simply replace with the refill. Glide emits scents of fresh-cut roses blended with bright mandarins, piqued with a warm touch of sandalwood and nutmeg. Remember to turn the diffuser sticks onto their opposite ends to experience a burst of fresh fragrance.