HDE 4-Digit Security Combination Lock for Laptops Protect Computer Security (1 Pack) Strong and durable steel alloy computer security cable for powerful protection of theft Be at ease when you get up from your work place or public with leaving your laptop behind locked up 3.5 feet long - 3/16 inch steel cable is ultra durable to further prevent the likeliness of breakage and stolen property Compatible with most notebooks on the market, check your documentation to see where the lock port may be located HDE is a registered trademark and is the only authorized seller of HDE branded products