Keyed Cable Lock for Microsoft Surface Pro and Surface Go: Uncompromised security for your Surface devices; Kensington worked directly with Microsoft to provide professional-level security 5mm Keying System: Non-invasive locking technology for an easy-to-use solution that requires no device modifications, preserving the Surface Pro and Surface Go’s hardware warranty and aesthetics Strong, Tamper Resistant Lock Head: Tested for torque/pull, foreign implements, lock lifecycle, corrosion, key strength and other environmental conditions, for your peace of mind Verified And Tested: From Kensington, inventor of the laptop cable lock; Each lock is precision engineered to meet or exceed rigorous industry standards for strength, physical endurance and resilience Contents: 1 x Kensington Keyed Cable Lock for Microsoft Surface Pro and Surface Go, with 5mm keying system, 1.8m carbon steel cable and 5 year warranty included (K68134WW)