The Lafayette Instruments Co. Skinfold Caliper 0-60 MM With Box is a hand-powered caliper made of metal. It is designed to measure skinfold thickness and provide body fat measurements. The caliper is spring-loaded and has a small width, making it easy to use and store. It is suitable for indoor and outdoor use and comes with a box for safekeeping. The product is in black color and weighs less than 1lb. It is not signed and does not have sensors. The caliper is in English language and has no California Prop 65 Warning.