3m+. No. 1 teether brand (based partly on industry data). Stays cooler longer, helping soothe sore gums. Multiple teething surfaces. 1. Textured surfaces massage and stimulate gums. 2. purICE technology provides gentle cooling. 3. Easy Grip design ideal for little hands. 4. Bright colors stimulate the senses. Multi-surfaced teether learning through play! The Icy Bite keys teether by Nuby is another innovation in the natural teething process; a toy which combine 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 Nuby 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 resilient bottom part of the keys soothes and stimulates safely. Colorful shapes are easy for baby to hold and sized for maximum effectiveness as a teether. All Nuby products are made of safe, durable materials and exceed all government safety and regulations and standards including Toy Safety Standard ASTM F963. PurICE stays colder longer than water-filled teethers. Cool only in a domestic refrigerator. Meets CPSC safety requirements. BPA free. Deaf Children's Literacy Project: This purchase will help support Deaf Children's Literacy Project. www.nuby.com. Facebook NubyUSA. Twitter NubyUSA. 1-800-Luvncare (U.S.A. only). Please recycle. Designed by Luv n' Care in the USA. Made in China.