"Our SOOTHE airflow soothers are super comfortable for baby, with soft silicone teats and airflow shields to help protect delicate cheeks against skin irritation. symmetrical teat sits comfortably in baby’s mouth airflow shield helps to protect very delicate cheeks against skin irritation travel case doubles up as a steriliser box for on-the-go sterilisation available in 0-6m and 6m+ sizes BPA, Latex & Phthalate free"