Features   Slip-Knot* is a continuously "Self Tightening" eyeglass frame temple connector. Featuring a unique molded high grade rubber silicon noose which insures a perfect non-slip connection for virtually any width temple. Slip-Knot* will safely secure even the thinnest diameter metal wire temples.     Slip-Knot* is composed of two separate components: Silicone rubber noose and strap Rigid Nylon connecting post The connector functions on the principle of a "hangman's noose", were by the noose naturally tightens around the temple. Unlike all other conventional connectors which require repeated re-tightening and tend to slip, particularly on thinner metal temples. Just as importantly the silicone rubber is of a type which resists aging. This connector will not become brittle and crack over prolonged use.