a pair of identical same similar pieces of dark grey metal steel iron weight lifting lifter plate

dark light grey gray backdrop background plain pair pairs two identical side piece pieces metals metal steel iron wrought weight weights lift lifting lifter lifters plates plate sport sports heavy mass kilo kilos kilogram kilograms tonne tonnes stack stacked combine combination combinations add adding pole poles bar bars endurance strength train training trainings muscle muscles protein proteins hole holes standard standards denomination denominations pound pounds heavyweight champion championship