Features: Make from Plastic that is impact resistant and enduring to maintain long terms quality in industrial environment. Simply open plug lock box, put plug into box, and then Padlocks the Padlocks, the lock is complete. Hexagonal locking device is designs to lock all kind of household plugs safely. Home washing machine, air conditioning, television and other such electrical plugs can be achieved through our plug lock for electrical safety, but also to prevent children from touching the power. Plug lock have uniquely designs internal antipry device with small holes on both side designs to prevent plug from being accessed and tampered with. Specifications: Materials: Plastic Size: Small/Medium/Large Small size: about 3.5x9cm/1.38x3.54inch Medium size: about 5x11.8cm/1.97x4.65inch Large size: about 6x17.8cm/2.36x7.01inch Package Includes: 1pc Plug Lockout Device note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.