Since 1843 Stanley tools have been on the belt and in the hands of professional contractors and accomplished homeowners. Synonymous with quality, reliability, innovation and value, Stanley is the first name in tape measures and trusted worldwide for accuracy and dependability. Compact and lightweight polypropylene molded body. Curved blade handy and efficient for stock removal. Sidecut teeth in blade useful for shaving in corners. Works on the pull stroke. Simple, click-on blade replacement. Use replacement blade 21-515.