Bulk up your weight collection with the gold coast 20kg cast iron plate designed to fit all standard 1 bars and with a hammertone finish that prevents rusting this weight plate is ideal for those looking to ramp up and intensify their home workout r why cast iron well compared to vinyl weights the advantages are far greater with vinyl you are limited in how many plates you can attach to the bar due to their bulkier construction whereas cast iron plates concentrate and distribute the wei