VEVOR Trap Bar, 500 LBS Hex Barbell Trap Bar, 55.7" Squat Deadlift Barbell, 25mm Diameter Weight Lifting Strength Training Shrug Bar with Handle, Home Gym for Squats, Deadlifts, Shrugs

Can someone please clarify? The description states, “Our bar easily accommodates standard weight plates available in the market…”, however the bar’s diameter in the pics is 50mm, which is Olympic dimension, not the standard 25mm. In fact, the pics show two different dimensions - 1 inch and 2 inch. I’m confused.