LANGE SKINFOLD CALIPER FOR BODYFAT testingMeasures % Body Fat. Complete with instruction manual and hard cover case with velvet/satin lining. This is the most direct, simple and accurate method to measure body fat and determine body leanness. Applies constant tension to the caliper jaws and to the thickness of the skinfolds during measurement. Sturdy construction of lightweight aluminum insures years of reliable use. F eatures a contoured handgrip for added user comfort. Accurate to + or - 1mm. Tips pivot automatically for parallel measurement. Easy to read scale. Up to 60 mm range of caliper jaw opening. A ll critical pivot points utilize low friction bearings. Spring-loaded leavers provide a substantially constant standard pressure of 10 gm./sq. mm to the caliper jaws. Used but in EXCELLENT Condition.