The corn teether has double benefits for baby: gentle vibrations from the corn cob will soothe gums, and by activating the massage mechanism when he bites, baby begins to learn cause and effect. The First Years' popular massaging teether concept takes on a unique farm theme with this John Deere design.From the ManufacturerThe John Deere Massaging Corn Teether will soothe your baby's gums with gentle vibrations. When baby activates the massage mechanism, he willl begin to learn cause and effect. Ages 6 months and up.