Durable material: goniometer saw is made of high-quality material, which is soft and flexible; the edge of goniometer is and does not scratch the hands when using; the scale on angle spinal ruler is printed with a printing technology, which is clear and wear-resistant, long service life. The goniometer physiotherapy is an choice for your usual measurements.Protractor medicine has a double scale: the length shown on the goniometer saw is the size and centimetre, and the goniometer physiotherapy is also engraved with parallel lines and angles, which can make your measurement more comfortable. The protractor medicine has a measuring length range of 0-14 inches, 0-36 cm, which can meet most measurements in your .Transparent design: the goniometer has a transparent design, so that the scale on the ruler is clearly visible. You can place the goniometer saw on the joints, limbs or other objects you to measure. The transparent design of the protractor medicine allows you to observe the measured data. Orthopaedic ruler can make your work easier.Measuring instruments physiotherapy can be rotated and adjusted: goniometer can be rotated around the scale. It can flexibly form the shape of an elbow, protractor medicine can be a great help in physiotherapy, sports etc., and the protractor doctor has a foldable structure that can be folded and stored when not in use, takes up little space and is easy to carryGoniometer physiotherapy has a wide range of uses: goniometer bicycle can be used in the following occasions and can be used in hospitals, rehabilitation centres, etc. Protractor doctor can be used to measure the movement area of elbows, knees, and other joints and the angle of the . The protractor medicine can also be used as a length meter for drawing, painting and levelling buildings.color:As shownMaterial:plasticPackage Contents:4 x ProtractorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.