Tether Rings Our tether rings provide the ideal solution for creating a point of tether for tools with captive holes. Particularly useful for working at height, tether rings move unopposed along the length of the tool and let you work safely without the risk of dropping any objects. Tether rings are cost-effective and extremely easy to use, requiring just a pair of pliers to open. And, they’re suited for use across a broad range of tools such as spanners, wrenches and screwdrivers. Plus, their robust design and anti-corrosion coating gives you a long-lasting, durable tether ring that’s guaranteed to withstand even the harshest of working conditions.