You are buying (6) brand new Blade Spacers Part Number:43592 Replaces Part Numbers:43278 Fits Models: New style spindles; walk behinds with 36", 48", 52" 61" and 72"; and STH-STHM with 52", 61" and 72" cutter decks, 1995-2002 Specifications:ID: 5/8"OD: 1 1/2"Thickness: 1/4" Before making a purchase, please make sure to confirm that the product is suitable for your machine, as the style of the pictures may appear similar, but the model may be different. Therefore, it is necessary to pay attention to the main models of the product. If you have any questions, please feel free to contact us and we will be happy to assist you. At the same time, we promise to unconditionally provide returns and exchanges in case of quality issues or any problems.