FSAIYIJ 8 Pack Jaw Trainer, Silicone Exerciser for Men and Women, 4 Resistance Levels Jawline Trainer

8-Piece Set with 4 Levels: Includes 2 jaw exercisers at each resistance level, 30, 40, 50 and 60 LBS, plus a divided storage case for gradual progression Food-Grade Silicone: Made from flexible, durable and BPA-free silicone for repeated use, with a smooth body that is easy to rinse and maintain Textured Bite Surface: Raised texture helps provide a steadier grip, while the compact shape is designed for placement between the back molars Simple Two-Sided Use: Choose a matching pair, place one exerciser on each side between the back molars, then bite slowly and evenly, starting with the lowest comfortable level Portable and Easy to Store: The divided case keeps all 8 pieces organised; rinse after each use, allow them to air dry fully and store only when clean and dry