These high quality Performance SXS Bushings fit our lower a-arms and 2014-2016 RZR XP 1000 and 2016 RZR XP Turbo lower a-arms. They are made from oil filled UHMW and include the inner bushing sleeve. To install the bushings you should use a rubber mallet or a vice with wooden blocks to keep from damaging the bushing. You should apply a small amount of grease or anti-seize to the bolt (not the threads) to prevent the bolts from corroding or seizing inside the bushing sleeve. Made in the USA.