General Information:[1]Please allow slight errors due to manual measurement. Make sure its size matches the fan port. Make sure the buckles are in the correct position and direction. Regularly clean dust and debris on the radiator and fan to maintain good heat dissipation.[2]Length: 10.3cm/4.06 inch; Center Width: 4cm/1.57 inch; Inner Height: 18mm/0.71 inch; Wire Diameter: 1mm/0.04 inch; Color: Metal; Material: Metal and Nickel Plated Surface; Style: Fan Buckle; In the package of: 4Pcs x Heatsink Fan Buckle[3]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.[4]Turn off the computer and power-plug.