Enjoy combining and playing with the 57-piece Kumon Kumikumi Slope set. - Brand: KUMON - Product Name: Kumikumi Slope - Set Contents: 57 pieces, 4 balls, allows for free combination of courses - Target Age: 3 years and up - Colors: Red, Blue, Green, Yellow - Features: Allows you to freely combine pieces to create original courses Thank you for viewing. The part where the propeller attaches is cracked, but it can still be played with normally. Also, there are only 2 balls, but it's sufficient, and you can also buy more from the website. You might consider adding more. Thank you.