These plates are sold in pairs
Rogue Calibrated KG Steel Plates
Machine calibrated for next-level precision, these durable cast-iron KG plates are accurate to within 10 grams in weight. Each disc is cut thin to allow for max loading capacity (up to 700+KG) and color-coded for easy identification from a distance. There are also calibration plugs on the back of each plate to allow for even greater precision. These plates feature a 50MM center hole for a snug fit on your barbell, and as a result may not fit on some cheaper barbells not held to spec.