Specification: Material:Cotton Gauze Color:Black Size:4 inch Features: *Engineered Power State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance. *4 Layers of Protection Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants. *Rugged Construction Universal Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime. *Simple Installation .