Stanley tape blade is coated with Mylar polyester film for durability. Secure blade lock. Stanley 33 series. Amazon.com The Stanley Powerlock 25-Foot by 1-Inch Measuring Tape is a classic, and for good reason. Designed for professionals and weekend warriors alike, this top-notch product offers maximum usability in all types of measuring situations. Equipped with a range of useful goodies, the highly-portable tape will meet just about anyone?s needs. Standard features include a lockable blade for precise measurements and minimal slippage, a belt hook for easy access, a 1-inch wide blade for easy reading, and 16-inch and 19.2-inch stud center markings. Plus, Stanley has added a heat-treated spring to increase the tape?s lifespan. Two unique features make this tape a standout. First, the blade is coated with mylar to help it stand up to abrasion associated with repeated use. Second, the patented Tru-Zero hook doubles as a pivot for drawing circles and arcs, and it automatically adjusts to handle inside or outside measurements. What this means is that the hook on the end has a small amount of play that is equivalent to the thickness of the hook blade. This is so that when you measure with the hook inside a stop (like a window jam), the front end of the hook is the zero point. When you hook it over the edge of a board, the zero point becomes the back of the hook. Stanley does make a host of other measuring tools that may be worth checking out. At such a great price, most users can?t go wrong with this one. What?s in the Box25-foot by 1-inch measuring tape The Stanley StoryThe Stanley Works, originally a bolt and door hardware manufacturing company located in New Britain, Connecticut; was founded in 1843 by Frederick T. Stanley. A few years later, in 1857, Frederick?s cousin, Henry Stanley, founded The Stanley Rule and Level Company. In 1920, The Rule and Level Company merged with The Stanley Works and would go on to become it?s famous Hand Tools Division. Over the years, The Stanley Works has produced some of the most innovative and useful tools ever made. Among these tools are the Bailey Plane, the Surform shaper, the PowerLock tape rule and most recently the FatMax line of products. Today, more than ever, Stanley continues to be an industry leader in tool innovation. In 2001, Stanley introduced more than 100 new products, bringing to 400 the number of new products introduced in the past four years. As a direct result of Stanley?s commitment to excellence, Stanley was awarded the Prestigious Golden Hammer Award, presented for New Product Innovation in both 2000 and 2001. Brand Story By Stanley From the Manufacturer Stanley Powerlock tape rules add convenience and usability for all kinds of measuring needs. With Stanley's unique sidelock the rule holds the exact measurement reading to prevent slippage and costly errors. All Stanley rules are designed with a convenient belt hook. It provides easy access to the tape while you are on the job. With lengths of 3 to 200 feet - Stanley offers tools to fit all your measuring needs. This Tape rule is the badge of the contractor. A few astonishing features have made this product the leader in the industry. The mylar coated blade for unsurpassed durability, blade lasts up to 10 times longer in comparative tests of abrasion resistance. There is a heat treated spring for longer useful product life. The Tru-Zero hook automatically adjusts to allow for its own thickness giving exact readings for either inside or outside measurements. The blade is two colored graphics for better readability and fewer measuring mistakes.