WhizRider is a convenient and safe portable car seat option. This harness is for children who weigh between 47-80 pounds and 47-57 inches tall. This innovative harness-style restraint system is a backless booster seat alternative for kids 3 and up. It’s just about the size of a medium coffee cup and less than a pound. WhizRider is a game changer for family travel, carpooling, ride-sharing, airplanes, 3-in-a-row and more. Get the freedom of safe and convenient car travel with your own WhizRider. It also includes a protective bag made especially for WhizRider to keep it handy in your handbag or backpack. SAFETY: WhizRider meets and exceeds the requirements of the US Federal Regulation Standard FMVSS 213 for Child Restraint Systems and FMVSS 302 for Flammability of Interior Materials. It takes approximately 10 seconds to put on. Check back weekly for awesome new arrivals! I ship within 24 hours of received payment 5 days a week. Thanks and have a great day!!!