Stanley 39-130 3 x 1/4-Inch PowerLock Key Tape
1/4" wide blade is polymer coated for added rust protection. Durable key ring feature makes it easy to take anywhere. Convenient and lightweight. Mylar® is a registered trademark of DuPont Teijin Films for its polyester film.  Only Dupont Teijin Films makes Mlyar® polyester film.