Features: Made of food-grade silicone, non-toxic, durable, ensures comfort and effectiveness during use. It can be easily cleaned with water and soap. Suitable for fitness enthusiasts, swimmers, and those looking to improve their jaw strength and face muscles tone. Simply put the training balls into the mouth, bite with the mouth and engage in chewing movements to perform face muscles exercises. Convenient and portable, the Jaw Exerciser can be used at home or while traveling. Incorporate it into your daily routine for effective face muscles training. Improve face muscles tone and boosts your confidence. Start your journey towards a healthier and more tone face today. Specifications: Material: Silicone Color: White/Green/Red/Blue/Black/GreyColor Size: As shown in the picture Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Jaw Exerciser