Knee Sleeve 12 1 2 Neoprene Open Patella XX Large Sportaid Washcloths 12 ABSOLUTE + AXIS * Ships via truck 12 ABSOLUTE + AXIS * 1 EACH * The Absolute+Axis (AA) goniometer removes the assume and eyeball by establishing a true vertical or horizontal * The Absolute+Axis (AA) goniometer removes measurement variability and allows the practitioner to concentrate on correct placement of the other goniometer arm and the patient s body position * The integral absolute vertical and horizontal levels are permanently incorporated into both the AA Baseline (2 color) 12 inch and Baseline© * Some measurements the AA goniometer is designed to improve are: shoulder and hip rotation (internal external) cervical flexion extension rotation and side bending * Installs quickly and easily on most traditional and adjustable beds * Tapered for contoured fit * Open patella relieves pressure on knee cap * Measurement is around kneecap * Latex Free 20 + Excellent Retail Packaging