6Pcs Spinal Spinal Finger Goniometer Protractors Multi- 180/ Measuring Tool

number: Spinal Brand new permits observation of the joint s axis of motion and range of motion. Precision and . Easy to use and carry. Durable to use. colour:Photo Color Material:plastic Contents: 1*6 inch goniometer 1*8 inch goniometer 1*12 inch goniometer 1*6 inch 180 degree goniometer 1*6 inch finger goniometer 1*8 inch goniometer Only the above content other are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.