Nuby IcyBite Keys The teething keys are designed to help in strengthening of new teeth. The teether is ideal when front teeth first start growing. It contains non toxic purIce gel that allows the teether to stay cool for a long time than water filled teethers. These keys are the Practical Parenting 2009/2010 Bronze Award Winner for Best Toy 6-18 months. Features -The cool textured surfaces soothe and stimulate sore gums safely. -The teething nubs help massage tender gums. -The bright colourful shapes encourage your baby visually. -Helps with hand eye coordination.