Bulk up your home weight collection with the gold coast 25kg cast iron plate set designed to fit all standard 1 bars and with a hammertone finish that prevents rusting this set of 4 weight plates is both the perfect starting point for those looking to pump iron and an ideal supplement to a more experienced lifters kit 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