Features PLASTIC MATERIAL: The protractor is made of excellent plastic, light in weight, easy to use and carry, with good toughness, not easy to wear. MOTION ASSESSMENT: If the patient joint range of motion is reduced, the orthopedic ruler can evaluate its range of motion and intervene. MAIN FUNCTION: The goniometer is mainly used for occupational therapy, measuring the motion axon and range, and checking the joints. WITH CLEAR SCALE: The multifunctional ruler can measure the angle and length of human joints, with clear scales, convenient and intuitive. WIDE APPLICATION: The protractor is widely used in medical training, course demonstration, occupational therapy, etc., compact and practical. Specification: Item Type: Angle Ruler Product Material: Plastic Product Size: Approx. 21.5 x 5cm / 8.5 x 2in Product Application: Joint angle measuring ruler Package List: 1 x Angle Ruler Package List 1 x Angle Ruler