Twisted Tether Ring by CorwineCustoms.3D LLC MakerWorld: Download Free 109 Tether Ring Stock Photos Free & Royalty Free Stock Photos from 1700s 1800's Antique Tethering Ring Rusty Barn Cow Horse Goat Farm for CRT Tether Ring Prostar Equipment Leasing The Prostar CRT Tether Ring is designed to keep Casing Running Tools. A study in contrast and connection. The Tether Ring features a bold, etched 925 sterling silver form crowned with a suspended lab grown ruby charm. The rich red stone dances against the weight of the squared bandstriking a balance between permanence and motion. A sculptural, symbolic piece that speaks to emotional gravity and the beauty of restraint.