JA-RU's Radical Sky Power Plane Gliders are great toys for kids, teens, and adults. USA approved and ASTM tested. Made out of high quality and durable materials. EPP foam airplane and no sharp parts. Outdoor sports are good for children' health. Helps your youngsters develop coordination, critical thinking skills with a practical way, also improve their hand-eye combination, coordination, observation and the sense of direction. Fly them in your backyard, garden with all different ages kids or adults, all of you will get lot of fun. Good way to spend time with your kids, with these planes you will have a fun activity. Easy to assemble airplane toys.