Built in shroud. Includes install kit. S-Blade fans typically have an improved CFM air flow rating. 

Specifics and Benefits:
    * Aids to Cool the Entire Engine Bay, including Radiator, A/C System, Intercooler, Oil System, and Transmission
    * Slim Design Provides Excellent Engine Bay Clearance
    * High Quality Lightweight Plastic Durable Material
    * Slim Style; Brings More Space for Engine Modification
    * Direct Bolt-On Installation, Requires No Modification

Blade Material: High Quality ABS.
    * Number of Blades: 8 blades.
    * Useful Life Hours : >2500H.
    * Volt: 12 Volt.