This is a three-piece tent set. Square, triangle, and round tube. Ball house Kids tent Children's tent Secret base Tunnel You can use just the tunnel for baby's crawling practice. Both the square and triangular houses are quite large, making them perfect as standalone secret bases! Even an 8-year-old can play in them with room to spare. There are no major stains on the main body. The box has a small tear. Please understand that this is a used item before purchasing. You can combine the three pieces, use them separately to fit your space for playing house, or use them as a ball tent. They can be stored compactly, so they don't take up much space. They pop open and are ready to use! There are 44 balls. Thank you for looking.