The NLG Spin Tether™ is the ideal solution for creating a secure tether point on a rotating, parallel-shafted tool such as screwdrivers or allen keys. It can be retro-fitted without the need for any additional tools to any tool with a shaft from 3.9-9mm - one size fits all. Simply fitted and tightened by hand, the patented device's non-metallic content also allows the tethering of tools for use in metal-sensitive and non-conductive areas. The spinning ring delivers uninhibited tool movement through 360 degrees. The NLG Spin Tether™ is constructed from advanced polymers, combined with the unique SoftLock™ core, to provide years of grip performance in the harshest environments. Max Load: 0.5 KG / 1.1 LBS Safety Standards: ANSI/ISEA 121-2023, CE / UKCA, NS 9611:2022+AC Load Tested and Third-party Certified: Dynamic (2:1 Safety Factor) Dimensions: 55mm (H) x 30mm (W) x 30mm (D) Max Lanyard Length: 120 CM / 48 IN