Check the listing for details. 4Pcs CPU Heatsink Fan Buckles 12CM Wire Buckle Upper Hook Type Fixing Clips PC. Condition: New. Listed at 10.93 USD. What is this?The fan buckles cpu can be used to install and secure the fan inside the chassis to provide heat dissipation and air-circulation. The pc fan buckle can also be used to fix other types of fan devices, such as hard drive cooling fans.What will I get?Length: 10.3cm/4.06 inchCenter Width: 4cm/1.57 inchInner Height: 18mm/0.71 inchWire Diameter: 1mm/0.04 inchColor: MetalMaterial: Metal and Nickel Plated SurfaceStyle: Fan BuckleIn the package of: 4Pcs x Heatsink Fan BuckleAre there any advantages of the product?The cpu cooler fan buckle is light in weight, small in size, easy to carry and store, easy to use, and good performance. Effectively improve system heat dissipation, and reduce chassis noise.How to use it?Turn off the computer and power-plug.