Jawliner® Mewing Ring 3 verschillende niveaus 3.0 The JAWLINER® Advanced is the Pakketen:3 Pack The JAWLINER® Advanced is the perfect tool for those just starting out with jaw training This creates a beautifully defined jawline and gives you the confident reach the Expert Ring and become a true Mewing expert with maximum tongue force for optimal jawline training The Mewing Ring helps you effortlessly learn the correct tongue position for mewing