Double Scale Body Fat Clamp Measuring Skinfold Meter Measurement Tape MeasureMeasurement tips:1. Select biceps, triceps, inferior scapula, iliac bone2. Use your thumb and index finger to lift the folds, and the folds are perpendicular to the long axis of the skin3. Keep the folds raised during measurement4. The body fat is perpendicular to the fold, 1cm away from the thumb and index finger.5. Slowly the pressure of the body fat clip, the strength is subject to the lock just sliding in.product description:Note for use: At 5cm of the measuring ruler, because the arc of the tape measure 5cm and the 1cm occupied by the card position need to be subtracted, the design of the tape measure here is not a printing error.The product contains: 1x body fat clip, 1x girth ruler