The Stanley FMHT33865S fatmax 25 ft magnetic tape measure has a powerful magnet that holds the tape in place when working with metal such as pipes, steel beams, ducts, and more. It is an especially convenient solution for electricians, plumbers, machine shop workers, steel framers and general contractors. This tape features an 11' blade standout* for reach and ease of use, with blade Armor coating that extends blade life up to 10 times longer than a basic Stanley tape measure. It has a three-rivet, corrosion-resistant end hook for accurate measurements; this Tru-Zero magnetic hook measures accurate every time. The slidelock feature holds blade securely in position, with 16" and 19.2" stud center markings that simplify framing jobs. Backed by Stanley limited lifetime warranty.