TwinRing designed for use in sectional Class II matrix adaptations. Adapts and adheres to a variety of tooth shapes and can be used with any matrix. Becomes easier to open as forceps are squeezed. Creates a strong and even tension that assists in the separation of the teeth. Excellent form memory guarantees to retain the original shape without warping, even after hundreds of uses. Creates a strong seal with the matrix. Eliminates interference when a clamp is used due to the angle of the spring. Kit includes Twin Ring Molar and Twin Ring Premolar.