a lot of small stainless balls mirroring in a pair of big stainless balls within a slim ball bearing with selective focus

balance ball balls bearing big chock circle clean conformity congruence construction couple elements engineering giant glossy group huge industrial industry iron isolated iteration large likeness little lot machine massive match mechanical metal mirror mirroring movement narrow new nobody pair parts polished quantity recurrency reflect reflection reflex repetition resemblance ring roller round set shiny similarity slim small spare sphere stainless steel tiny tremendous twain two variety within