Kids FlySafe Cares Airplane Safety Harness Condition: Preowned, EUC, used once. Our kids didn’t want to sit in a car seat when they were under 2 and were too big for our laps so this was perfect to help strap them in and keep them safe. The airplanes seat belt for kids 2 and under isn’t enough. Includes: bag, manual & harness Weight: 22-44lbs Features: Light Weight, Portable, Easy to Store and Installs In Minutes.