CAP Barbell Olympic Grip Weight Plate CollectionINCLUDES FOUR 10 LB Olympic Grip plates CONSTRUCTION Made of solid cast iron with a machined hole and a durable black baked enamel finish; The weight has a 2 inch center hole to accommodate Olympic bars; E commerge packaging FEATURES Each weight features grip holes to provide a secure grip during use; The baked enamel coating ensures a durable, reliable weight that will last through grueling workouts & the raised numbers help to easily identify weight