This Master lock MLK2120E Computer Cable Lock will secure any laptop, netbook, monitor or projector which has a built-in lock slot. It is ideal for campus, office, travel or home use, and has a durable metal construction for security, with two foam spacers included for a secure fit. The strong, ultra-portable self-coiling cable extends from 10cm to 1.80 metres, with a diameter of 5mm. The Computer Lock's trusted locking mechanism has dials which are spread apart to allow for easy movement. The high contrast numbers are easy to read, and the red viewing window allows for easy viewing and resetting. 10,000 possible combinations.