The TROY Pro Style Barbell is pre-assembled to meet the standards required for any commercial application. All of our pro style barbells use solid steel bolt design. These barbells consist of straight or curl bars and feature deep set knurling for functional performance and top-of-the-line TROY high grade Hammertone Gray plates, premium black plates or rubber black plates. Of your choice. The chrome or rubber encased end caps include the TROY name and numbers for easy identification.