Made from zinc alloy, this caliper is built to last and can withstanddailyuse With its compact and portable design, this keychain caliper is perfect for measuring Attach it to your keys, car, bag, or suitcase, and alwayshave a measuring tool at hand For professionals in the fielddof engineering, jewelry making, and more, this caliper provides accurate measurements up to 4cm Whether you ' re working in a workshop, at home, or on the field, this handy caliper willhelp you measure with ease, Manufacturer: NEWFT