CHUMS 1230843 The Switchback Silicone Eyewear Retainer is a one-piece molded retainer. The temple ends can accommodate a wide variety of eyewear via its two-port design: one port for larger frames and one port for smaller and wire frames. Colors are assorted. The switchback is UV and corrosion resistant. Non-absorbent and stretchy. Length: 17.75". Usable length:
15.5".