Genuine Bowflex SelectTech 552 Series 2 Replacement Discs #2, #3, #4, #5

Works withNautilus / Bowflex 552 Series 2 dumbbells. Compatible withBowflex 552 Series 2. ????ONLY WORKS ON SERIES 2 MODELS ????. Series 2: White numbers on the outside weight dial. Series 1: Red numbers on the outside weight dial (❌ NOT compatible).