The instinctive action of sucking helps to calm and soothe babies. This comforter has a symmetrical teat, so it'll always be the right way up. Tommee Tippee silicone soothers have a specially designed shields for a comfortable fit. Tommee Tippee Fun soothers are available in 0-6, 6-18 and 18-36 months. This baby dummy is specially designed with air holes so their skin can breathe. All Tommee Tippee soothers are BPA free for added peace of mind.