Designed for individuals who are recovering from surgery, an injury, or have limited jaw opening and closing motions Scales measure how wide an individual can open their mouth; users can easily track and record the patient's progress and improvements Adjustable from 25mm to 45mm; bite pads can be cut down to any size to customize the comfort for every user Scales are meant to be used with the TheraBite Jaw Motion Rehabilitation System Sold as a pack of 150 range of motion scales ISO 9001 Certified Company