[Features] Package include: you will get 1 piece 360 degrees goniometer 12 inch, it can help we assist in physical therapy by determining the range of motion of a joint; It is a kind of equipment that is always available at home Goniometer Multifunction: goniometer physical therapy is used for measure the movement range of joints such as elbows, knees and fingers. also can be a general length measuring tool. " Degree of Clarity: multi scale display, easy to read, 360 goniometer head features three scales to allow for a variety of readings. The arm's ruler features both inches and centimeters. High-Quality Materials: goniometer is made of quality plastic material, tough, durable and is designed with transparent color, can clearly observe the range of motion of the joint. Wide Application: 360 degree goniometer which can be applied for measuring the range of joint motion and the angle of the spine, etc.; It can also be applied to the production of architectural drawings and horizontal measurement [product information] product name:Limb angle ruler color:transparent Material:Plastic size:12.6*31.5cm Packing list (you can get after purchasing one item): Limb angle ruler * 1 Please understand: 1. Due to the long shipping time, the item may be damaged during the shipping process, if the item is damaged, please leave us a message through the official website immediately before posting comments, and I will solve the problem for you. 2. Due to manual measurement, the size may have an error of 1-3cm. 3. Colors may vary from monitor to monitor.