Baseline posture evaluator provides accurate and repeatable measurements. 3-piece set includes protractor, evaluator and grid. Measure range-of-motion for all major articulations, cervical rotation, lateral flexion of the head and anterior-posterior cervical flexion. Bubble level assures measurement is made on horizontal plane. Two 180░ opposing scales in 5░ increments. Baseline posture evaluator provides accurate and repeatable measurements. Use the angle pointer to find and measure alignment. The plastic posture grid (25"x48") can be suspended from the ceiling or wall bracket. Set includes a suspension cord and a plumb bob to measure alignment.