Go Rhino 5" OE Xtreme Composite Step Nerf Bars with Mounting Brackets Kit Model 685415680CCGo Rhino 5" OE Xtreme Composite Side Steps with Mounting Brackets Kit Model 685415680CC The 5" OE Xtreme Composite Side Steps are factory styled side bars that are specially engineered for cold, wet climates, where safety and durability are paramount. The composite construction with aluminum mounting rails are topped with Go Rhino's signature SuperGrip rubber step pads, which maintain a non slip surface even when wet. Vehicle specific mounting