The Silicone Cablz are made from 100% silicone and have the same streamline look of Cablz at a value price! They are extremely flexible and very comfortable having many of the same Cablz benefits. They have Universal Ends making them the perfect fit for any pair of glasses. They are available in 16 inch length. Theses Cablz are flexible, durable, lightweight, comfortable, waterproof, low profile, and non conductive.