3Pcs/Set Spinals Goniometer Protractors Userful Multi-Ruler Goniometer Angle Spinal Ruler 360 Degree 180 Degree

Name: Ruler Quantity:3pcs Brand new Characteristic: 360 degrees of coverage in 1 degree increments to ensure the accuracy of the IOM (international measurement standards). The measurements in inches and centimeters are on the arms. The transparent plastic allows the observation of the axis of movement and range of movement of the Board. Precision and reliable Comfortable to wear and carry. Durable in use colour:Photo Color Material:plastic Size: 100mm 200mm 300mm Package Contents: 3*Goniometer(1pcs for each size 100mm 200mm 300mm) Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.