The Slimguide Caliper is based on the Harpenden Caliper jaw and constant pressure design. Constructed of strong heavy duty ABS plastic the direct reading analogue pointer means that the caliper will not require further calibration once factory set.
The spring close ensures a constant pressure throughout the whole range of measurement.
The Slimguide Skinfold Caliper is especially useful using the Durnin & Womersley method (1974). This method utilizes four skinfold measurements, which are the same for both males and females, to estimate body fat percentages. The four skinfold sites are: triceps, biceps, subscapular and suprailiac.