This is the cutting plate from Combi's "Baby Food Navigation Cooking Set C". Only the cutting plate is for sale. I bought it used, but it's unused. It seems the previous owner also didn't use this part. Includes a recipe book. It's used to finely chop ingredients for baby food. There are two types of grid-shaped blades of different sizes, which can be used depending on the hardness of the food and the stage of baby food. The materials are ABS resin (body) and stainless steel (blade). It's a product of Combi Corporation, a Japanese baby product manufacturer.