Train your face: With a Jaw exerciser, you train your facial muscles to reduce sagging and wrinkles. You get tighter, more defined lines that give you a healthier and more youthful appearance. The chewing ball offers resistance and thus works your muscles in the face, jaw and neck. Ergonomic shape: The jaw trainer for the face and jaw is made of silicone, which provides a custom shape for your mouth and allows you to easily adjust the shape based on your needs. Comes in a set of 3 pieces in different colors. Specifications: Color: Black/Purple/Blue Material: Silicone Size: 4.1x3.4x2.6 cm Note: For hygienic reasons, it is not possible to return or exchange the product if the packaging/seal is broken. The package includes: 3 x jaw trainers Improves your jawline Ergonomic shape Trains facial muscles Adapts individually