Now that you've chosen the Summer Infant Secure Surround Play Safe Play Yard, so that you can create a safe and portable space for your child anywhere you go, add this 2 Panel Extension Kit and give your kids even more room to play. With just these two tough and lightweight plastic panels, you increase the play yard's area from 18.5 to an incredible 34.4 square feet! It's the perfect accessory for hosting play dates with friends.