Blue Jay&trade; Take A Range Check 6" Stainless Steel Goniometer 140 Degree Protractor, Range of Motion Test, Physical & Occupational Therapy, Orthopedic, Chiropractic, ISOM Std-For Finger or Toe 140-degree goniometer Large Easy-to-Read Font Transparent for easy observation Durable Construction Conforms to global ISO norms Clearly Marked Readings Excellent Medical Evaluation Tool Recommended by therapists