This heavy-duty tape measure comes built in with many features that makes this an attractive product for anyone looking for a reliable tape measure. The sliding thumb switch locks the tape into a certain position, allowing for precision measuring and greater flexibility while measuring. All the while, a superior internal mechanism ensures that the tape measure slides smoothly and with ease during use and retraction. Additionally, a nylon coated blade and high impact resistant ABS case with a non-slip cushioned grip grant this product unparalleled durability and sturdiness. If you are looking for a tool suited for professional, recreational and household needs, the heavy-duty tape measure is for you.