This listing is for TWO disc. You will receive not one disc but two disc. Nautilus / Bowflex 552 Series 2 Disc 2 Replacement. This replacement disc is 3D printed and made from a high quality durable material called PETG. It’s NOT made from the very brittle PLA plastic that other eBay sellers are selling. PLA plastic will crack and separate with little force rendering it useless. This item is for two replacement disc. *****THESE ONLY WORK ON THE SERIES 2, SERIES 2 HAVE WHITE NUMBERS ON THE OUTSIDE WEIGHT DIAL. SERIES 1 HAVE RED NUMBERS ON THE OUTSIDE WEIGHT DIAL*****
