Westin 32-3645 Black Ultimate Bull Bar A mount kit is included with every application, so there's only one part number to order. Product tube diameter is assigned appropriately by vehicle size and will come in 3 inch or 2.5 inch tube. Molded weld caps provide a quality finished look. Choose 304 stainless steel with chrome plated finish for maximum rust protection. Choose black powder coated finish to match vehicle trim package. Polished stainless steel skid plate with laser cut Westin logo helps protect under carriage and adds style A no-drill application makes the Ultimate Bull Bar easy to install.