Replaces: Craftsman: 55323, 55323MA Fits Models: Murray: 20″ and 21″ single stage snowblowers Simplicity: 521E single stage snowblowers Craftsman Width: 1 1/2″ Length: 20 9/16″ Thickness: 1/4″ We will send you an e-book within 48 hours after purchase. If you have any questions about part numbers and models – please contact with usProduct DescriptionScraper Bar Craftsman 55323MAReplaces: Craftsman: 55323, 55323MA Fits Models: Murray: 20″ and 21″ single stage snowblowers Simplicity: 521E single stage snowblowers CraftsmanSpecs: Width: 1 1/2″ Length: 20 9/16″ Thickness: 1/4″ Center To Center: 6 1/4″ No. Of Positions: 4 Material: Black Plastic