Design : Two rulers in one, there are multiple cm/inch/angle scales/parallel lines on the ruler, which makes this ruler usable in many fields. Functional tools for daily measuring and drawing. Transparent Color: The protractor allows the user to easily identify the scale on it. You can place the goniometer directly on the joint or limb for easy observation 360 degree portable: Our protractor goniometer features 360 degree rotation, the product adopts folding structure, small and light, easy to carry and does not take up space. Versatile: The 360 degree goniometer can be used to measure the active area of joints such as the elbow, knee, spinal angles, as well as to create architectural drawings and level measurements Features: Material PVC high quality, lightweight, clear printing, easy to see and easy to use. Our goniometers provide 360 degree coverage. in inches and centimeters. Designed to measure axes and range of motion, the ideal goniometer for measuring joint range of motion. The medical angle ruler adopts special printing technology, the scale is clearly visible for a long time, and the service life is long. The 360 degree rotation can be used in a variety of situations, helping to accurately determine the area of motion of a joint for physiotherapy, sports therapy, etc. Specification: Material: PVC Colour: transparent Thickness: 0.8mm Dual Scale: The arm ruler displays both inches and centimeters. Features: Professional Multi-Foot 360 Degree Goniometer Angle Spine Ruler (cm/inch) Purpose: A functional tool for measuring the range of motion of joints such as elbows and knees. Package contents: 2 goniometer Quantity delivered: 2 pieces Product color: Clear Product size: 215*48mnm Note: Manual measurement, please allow 1-3cm error