Features<br> 1、Aid in Treatment: Aid in physical therapy by determining the range of motion of the joint, which is an easy way to measure recovery after surgery.<br> 2、Easy to Observe: The limb angle ruler can directly place the device on joints or limbs for easy observation.<br> 3、High Accuracy: The joint motion goniometer has high measurement accuracy, small error and convenient to use.<br> 4、Battery Powered: The plastic joint angle finder is made of high quality plastic material, durable and battery powered.<br> 5、Uses: Protractors are suitable for those who are at work or who are undergoing physical therapy, sports therapy, or post operative rehabilitation programs.<br> Specification<br> Item Type: Finger Goniometer<br> Material: Plastic<br> Battery: 1 x Button Battery (Not Included)<br> Battery Model: CR2032<br> Resolution: 0.1 Degree<br> Accuracy: ±1 Degree<br> Measuring Range: 0-180 Degree<br> Package List<br> 1 x Finger Goniometer