Aluminum: This generation of Aluminum Skid Plates provides the most effective protection for frame and engine. Endurance-tested for the toughest off-road applications. Easy to mount. Extremely durable. Made of high-strength aluminum. Highest quality workmanship. Custom design. Most effective protection for frame and engine. Extremely resistant fastening system. Plastic: This generation of Plastic Skid Plates provides the most effective protection for frame and engine. Developed by Husqvarna for precise fit and finish. Form fitted to frame and cases for minimal weight and maximum protection. Ultra-secure "stay-in-place" dual bracket system for easy installation and removal. Protects frame and vital engine components. High-impact, durable, and shock resistant. Quick and easy installation.