I am selling this because my child no longer plays with it. All parts are included, but there are two balls missing. (There should be 24 balls, but there are 22.) Everything else is included. My child mostly played with cars, so they didn't use this much. Therefore, the parts are in relatively good condition. The guidebook is intact and in good condition. I wrote numbers on the balls to prevent them from getting lost, but this does not affect their use. This is a used item that my child has played with, so please understand. There may be minor scratches that I have overlooked, so please refrain from purchasing if you are sensitive to such things. - Brand: KUMON - Product Name: Kumi Kumi Slope Plenty 100 - Included: Colored balls (multiple colors) - Instruction Manual: Instruction manual (guidebook) included If you have any questions, please feel free to comment before purchasing.