Use this fastener if your equipment has a solid screw that goes into a metal frame. Designed to prevent thief from opening up the computer casing to steal or swap internal parts. Use a steel cable to slide through the fastener to cover access to screw. A FLEXGUARDŽ product. Availability: Usually ships the next business day. Regular price: $1.95Sale price: $1.85 Thank you for visiting http://www.worldsecuritycorp.com, with over 100 products, the World's Largest Computer Security Store! You can also call us at 303-670-8800 M-F 8:30a-4:30p MST.