This Ergodyne Wrist Tool Lanyard features a polyester webbing cuff that secures comfortably to your wrist. It includes an energy-absorbing ribbed pull cord and an adjustable barrel lock for secure tool attachment. The short length is designed to improve drop clearance. Wrist Measurement: S/M 5" - 7" (13cm - 18cm), L/XL 7" - 8" (18cm - 22cm). Tether Length: 7.5" / 19cm. Maximum Safe Working Capacity: 2Lb / 0.9Kg. Approved to the ANSI/Iisee 121-2018 Standard and third-party certified to a 2:1 safety factor.