This is a hard to find auger rakes set from a Bolens 824 snowblower. Both sides are in good used condition and should fit others models such as the 524, 624, and 724. These measure 16″ in diameter and have a center pipe length of 9.5″. Please ask if you have any questions or need some measurements. If you only need one side, just send an offer. I have many more parts for these machines, let me know what you need!