MATERIAL:Jaw exercise and neck toning tools made of food grade silicone to ensure safety. The polyurethane bite strip allows you to customize your mouth, allowing you to easily adjust the shape and oral cavity.^ Effect: jaw training equipment and neck toning devices tighten and tighten the facial muscles below to reverse the signs of ageing. Trains facial muscles to reduce bagging, wrinkles and smiles, looks younger and better. Reduce hunger, it has been shown to reduce cravings, leading to more weight loss.^ WORK OUT: Jaw Exerciser is for those who are interested in health and fitness and want to create a more musculous, youthful look. It's the hands-free calling that everyone can do.^ Can be applicable: a younger, tighter face, increased metabolism, increased hair growth, stress relief, increased levels of human growth hormone and termination of oral fixations to name but a few.^ Lightweight and practical: it has been shown that chewing jaw exercises reduces desire and leads to more weight loss. Comfortable, easy-to-carry hands-free exercises can be used when going out, at the gym, at work and anywhere.^