It is leak-proof, can be used independently by children with its unique screw cap and can be completely dismantled for easy cleaning. Recommended by US dentists: 90% agree that the design of the Philips Avent straw cup allows healthy tooth development and 86% would recommend the straw cup. The angled straw allows a pleasant drinking position and thus a natural drinking behaviour right to the last sip. The soft silicone straw is soft to the gums.