- Brand: KUMON - Product Name: Kasu Puzzle 100 - Contents: Puzzle pieces, board, answer sheet - Number of pieces: 100 pieces Thank you for viewing. This is a used item that a child has played with. There is some dirt on the paper frame. Please check the photos. Other than that, there are no noticeable stains, but there is a feeling of use. Please understand before purchasing. All contents are included. It will be shipped in simple packaging wrapped in bubble wrap. Thank you very much.