The Gulick II Tape Measure makes it easy for anyone to accurately and repeatably measure various body dimensions. It eliminates the guesswork by applying a known amount of tension (four ounces) to the measuring tape so that accurate measurements are possible no matter who is doing the measuring.
If an ordinary tape measure is used, the measurement will depend on how tightly the tape is pulled. If you pull harder and harder, tissue compression will be greater and greater, and the measured circumference will become smaller and smaller. Two consecutive measurements are usually quite different. By applying a constant tension (as the Gulick II does), accurate and repeatable measurements can be taken.
The Gulick II Tape Measure uses a no-stretch, non-metallic, retractable tape with both Metric and English gradations (centimeters and inches). The self-retracting tape is kept at the desired length until the retract button is pushed.