Upgraded Fishbone Design for Mens and Womens Silicone Jaw Trainers 3 Resistance Levels Facial Muscle Trainer

Product Information:1.Adjustable elasticity, providing three different resistance levels (40 pounds white, 50 pounds gray, 60 pounds black), suitable for users of all experience levels, promoting continuous improvement.2.By upgrading the fishbone design, it provides balanced hardness and excellent flexibility, allowing you to exercise facial muscles more effectively while ensuring excellent durability.3.Our mandibular exercise machine is made of 100% BPA free food grade silicone, ensuring the health and safety of users. And it's also very easy to clean.4.Lightweight and easy to carry, convenient and practical. Our jaw trainer is designed to be compact and lightweight, making it perfect for carrying around for muscle training. No matter where you are, you can easily integrate it into your daily life.