Black Break Away Eyewear Cord, Lanyard - MCR Safety offers a wide variety of products to assist in the care and maintenance of your safety eyewear. The 222 eyewear cord helps you keep up with your safety glasses in style. The foam tips on each end of this lanyard slide snug onto most eyewear temples holding your glasses firmly in place. Designed to Break Away should the eyewear or Cord become entangled. Dielectric, no metal pieces.