1-inch diameter barbell made of solid steel in black and chrome colors, convenient for all gyms and homes Threaded ends come with lock collars for safety and convenience. Bars are chrome or black plated with solid steel construction for repeated use and long lasting Holds up to 300 Pounds, the bar works perfectly with weight plates with 1 inch center hole Multiple knurling positions and lengths for your convenience and safety, perfect for exercises such as squats, deadlifts, rows, bench presses, cleans, etc Bars only. Plates and collars are not included