English Book POWER LAUNCH PAPER JET This is a set of paper airplanes. It comes with base parts, making it easier to fly far. It includes 10 colorful papers with pre-folded creases and folding instructions. This book was purchased in America and has been stored at home. As it is unopened, I cannot confirm if the rubber bands have deteriorated. This is not a new item, so please refrain from purchasing if you are looking for perfection or are concerned about minor details. Thank you for your understanding of used books. 21.5 x 28