Nuby Ice Gel Teether Keys Blue And PinkThe IcyBite Keys teether soother by Nby is another innovation in the natural teething process; a toy which combines exercises for young hands, gums, and teeth as well as providing visual stimulation for your baby. This colorful toy is also a dual surfaced teether. The tops of the Nby ''keys'' are constructed of a soft textured material with offset surfaces, that assist in the eruption of teeth through infants delicate gums. For sore gums, the cool