Dr Brown "Learning Loop" teether, a product made of silicone with a durable texture. Contributes to the development: ideal for biting, exploring with the tongue and develop speech thanks to its fun shapes and colors. Safe and soothing for baby. Can be cooled in cold water or refrigerator for added gum relief. Easy grip design for little fingers. Reaches all parts of baby's mouth. Can be washed in the top rack of the dishwasher.