TUTAVIAW 1PCS 44LB Weight Plate Set - Single Pair & Set Home Cast Iron Barbell Weight Set Weightlifting Bar Athletic Grip Barbell Plates for Strength Training Weightlifting Weight Loss

shipped quickly. I didn't calibrate, but you certainly can't feel a difference with any of the other 45lb plates I have. The gray color is pretty cool looking and you can't beat the price!