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The Rosscraft line of Campbell Bone Calipers are named after the late Mr. Robert Campbell, the inventor of the double siding branch principle, an exclusive Rosscraft design feature. The Rosscraft caliper may be the only caliper manufactured in the world that has long branches that do not bind under pressure at the tips.

The Slim Guide skinfold caliper is an inexpensive alternative to the Harpenden caliper. The Skin Caliper yields approximately similar results and its rugged ABS plastic construction, with high quality springs, guarantees a long life of usage. In the hands of a trained anthropometrist, skinfold calipers percent technical errors of measurement for a single replication as low as 5 percent depending on training and technique.

The Rosscraft Slim Guide calipers are black with a silver scale. The Slim Guide Calipers have a similar dynamic action to calipers costing over fifteen times as much. Made from high impact ABS plastic, the Slim Guide can be dropped without damage. The Caliper is so indestructible we can ship in a manila envelope with no extra padding. The scale of 0 to 85 mm is especially useful in assessing skinfolds at the upper ranges, that are not accommodated by most other calipers. Accuracy may be interpolated to 0.5 mm.