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 Color : Transparent Material: PVC Size: Length 31.5cm/12inch Circle width 12.6cm/5inch Net weight: 55g Gross weight: 55g Packing method: bag Packing size: 31.5*13*0.2cm Packing list: 1 12inch transparent orthopedic angle ruler.Items from Sheng Xinshun's shop