| St. John Leg Leveler Kit developed by  St. John seminars to assist the therapist   in correctly evaluating anatomical leg length differences in clients /   patients.  Kit includes 5 durable calibrated foam lifts (2, 3, 4, 6 and 10 mm),   a carrying case and micrometer. *Sold separately, is the Instructional Video for Analyzing Leg Length Differences  |