Three Carborundum sharpening grinding wheels new old stock 3 3/4 x 1 1/2 x 1 1/4, these are unused in good original boxes. These tools and items came from a Root Brothers storage facility, Root Brothers is a large hardware supplier in Chicago and dates back to the 1920's, they are still in operation today, these are mostly vintage items that are left over stock , most of it has been in storage for years if not decades, they have decided to sell off this old stock.