Features: - Reduces fan vibration - Noise reduction - Extends the life of computer accessories - Easy to use with good elasticity, larger deflection, aging resistance, and effective vibration absorption - Quick and easy to install - Color: Black - Material: Rubber 1. Rubber screws designed for open corner cooling fans. Made from premium materials for softer performance, providing improved noise and vibration dampening. 2. Compatible with mounting holes sized between 4.3 to 4.8mm in diameter. Convenient for installing and removing cooling fans, ideal for minimizing noise and vibration caused by cooling fans. Package Contents: 50 x Computer damping nails Note: The package includes only the items listed above. Other products are not included. Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement allows an error of +/- 1-3cm.