Philips Avent orthodontic, collapsible teats respect the natural development of baby's palate, teeth and gums. The symmetrical and collapsible teat ensures that it does not matter if the soother ends up upside down in the mouth. All Philips soothers are made from silicone and are taste and odour free, meaning that your baby is more likely to accept the soother. The silicone is smooth, transparent and easy to clean, and it doesn't get sticky. The teat is strong and long-lasting, and wont become misshapen or discoloured over time. The soother also comes with a snap on hygienic cap to help keep sterilised teats hygienic.