The product is a set of 138971 Blades with a 5-Star mounting pattern designed for Craftsman 42 inch mowers, specifically the LT1000 model. These blades are made by Hipa and come in a pack of 2, each backed by a 6-month manufacturer warranty. They are compatible with Craftsman LT1000, LT2000, T110, and YT3000 models, and are suitable for gasoline-powered lawn mowers. The blades feature ESCP technology and require no assembly for installation, making them a convenient and reliable choice for maintaining a well-groomed lawn.