These Billet Aluminum Hex Radius Arms for the Polaris RZR PRO XP are strong, and turn heads like no other suspension part will! They are built strong with 1.5 Inch diameter and 7075 billet aluminum alloy construction compared to OEM's 1 Inch lower arms. The hex bar design gives them some ultimate added strength and makes them easily adjustable while installed on your RZR PRO XP. These are backed by a lifetime warranty so give em heck! These are combined with SuperATV's massive 3/4 inch heim joints with steel helical inserts. The Helical inserts are used to reinforce the radius arms threads so that the heim joints won't strip them or pull out. These are just stronger from tip to tip. Run your RZR PRO XP wide open with these Billet Aluminum Radius Arms installed. Upgrade your Polaris RZR PRO XP with these Radius Arms Today!! - Our Super ATV A-Arms generally ship out within 1 business day! - Fits: Polaris RZR PRO XP : 2020+ / Polaris RZR PRO XP 4 : 2020+ - Hex Radius Arms are Backed up with a Lifetime Warranty by Super ATV - Made of 1.5 Inch 7075 solid aluminum bar compared to 1 Inch lower OEM arms - Utilizes Helical Inserts for Unbreakable Threads - Fully Adjustable 3/4 inch x 16 heim joints with bushing included - Hexagonal Design for Strength and Style - Hex Design lets you Adjust Camber and Toe While Installed - Lifetime warranty! - Manufacturer's part# RA-P-PROXP-HEX Installation Instructions