The York 20kg Standard Cast Iron Weight Plate is designed to fit all standard 1 inch diameter bars. Perfect for increasing the workout load of your equipment, the plate can be added to 1” barbells, dumbbells and pegs.. Sold individually, the 20kg weight plate proudly boasts the YORK brand name and weight marking. York are famous for producing weight plates for over 80 years and there are more York branded plates in the world than any other brand.