Replaces surgical steel cable with Blue Monofilament. A very "cool" look with a material fisherman have been using for years to "make their own" eyewear holder! Both Original Cablz (stainless or black) and Monoz feature a lightweight alternative to other products on the market! It doesn't touch your neck when wearing glasses and therefore is never Hot, sweaty or smelly! Comes in 12", 14", and 16" lengths (add 2" to size for total length including rubber attachments)