Specifications: Diameter: 3.62" Color: Silver Features: Increase airflow through your computer while maintaining a safe operating environment with StarTech.com's FANGUARD92. Designed to cover 9.2 centimeter fans, this product proves StarTech.com carries all of the hard-to-find computer parts professionals need to build systems. Designed to ensure air flows freely while keeping objects safely away from the fan blades. Durable, all-metal construction for long term reliability and safety Parts: 1 year limited Labor: 1 year limited