This K'NEX Education Elementary Construction Set, model number 78980, is a fantastic building set with 1200 pieces that will keep your child entertained for hours. The set includes a variety of connectors and pieces in multi-colors that can be used to create a variety of structures. The theme of the set is airplane car, making it perfect for those with an interest in aviation. The box has been open but all packages are still sealed as seen in pics The recommended age range for the set is 10+ and it is designed for educational purposes. The plastic pieces are durable and easy to connect, so your child can create and build with confidence. This set is perfect for those interested in building toys and blocks, and is sure to provide hours of fun. Spare room