Tough 10mm Nano Saver primary lock head with Cleat Locking Technology attaches to the Kensington Nano Security Slot found in select ultra-thin laptops and tablets for uncompromised security 5mm Keying System is compatible across all of Kensington's latest locks and includes patented anti-pick Hidden Pin Technology Carbon steel cable resists cutting attempts and anchors to desk, table or any fixed structure Pivot and rotate cable provides superior laptop engagement Independently verified and tested for industry-leading standards in torque/pull, foreign implements, lock lifecycle, corrosion, key strength and other environmental conditions