Product Compatibility: Compatible with 2014-2023 Polaris RZR XP 1000, Compatible with 2014-2023 Polaris RZR RS1, Compatible with 2014-2023 Polaris Turbo. NOTE: 10mm is for year models 2014 to early 2017; 12mm is for year models Late 2017-2023 Material Features: Forged from aluminum alloy with protective oil coating, sturdy and reliable, hard to crack or rust. It stands up to heat, heavy loads, and years of daily use without easily weakening, providing reliable performance for the long run Good Functions: These parts are designed to make the vehicle sit higher off the ground and finely adjust its suspension. This improves stability and handles bumps better on uneven ground, giving you a smooth and stable riding experience Installation Way: Use screws for installation, no other drilling or modifying needed. You can make quick attachment to your vehicle's assembly on your own. You can also seek professional installation Package Content: You will received 2 x upper Radius Rods Arms. NOTE: NO install instruction in the package