Powerlock Single side measuring tape features 12' x 1/2" blade that is made of durable Mylar polyester material for long service life. Inch tape with double-duty tru-zero hook comes in a convenient ABS case that resists rough handling. Blade length: 12 ft. Blade width: 1/2 in. Blade finish: Mylar polyester. Case size: 1. 1 in height x 3 1/2 in width x 5. 8 in length. Case material: ABS. Die-cast metal case holds its own against rough handling. Entire blade coated with heavy-duty Mylar polyester film for unbeatable durability. Two-rivet, corrosion-resistant hook stands up to continuous use. Special tru-zero hook does double-duty as a pivot for drawing circles and arcs and positive blade lock will not creep while taking measurements. Heat treated spring for longer life and 32-211 replacement blade. 32-211 replacement blade. Powerlock Mylar Polyester Single Side Measuring Tape comes with corrosion-resistant hook stands up for continuous use.