RIGID LATCH FOR ADDITIONAL SAFETY: The Clek Backless Booster seat utilizes Rigid Latch that locks the booster seat into place using your vehicles LATCH anchorage system for easy installation. This provides additional booster seat stability in a collision COMFORT FOR YOUR BUM: Numb-bum is what happens when you sit on hard surfaces for long periods of time - even your legs fall asleep! The Olli booster seat is different: it's built like the seat in your car. Our Comfort-cube construction includes an additional layer of padding that protects against numb-bum! OPTIONAL ACCESSORIES FOR CONVENIENCE: Strap-thingy carrying strap sold separately for the Ozzi backless booster seat makes for a no-hands carrying convenience. Slip the strap over your shoulder while moving from point A-to-B and beyond. Weighing in a just 5 lb you won't find a more portable and compact booster seat for between vehicles, through the airport, or just walking through the city and catching a taxi DESIGN TO YOUR CHILDS PERSONALITY: Whatever your child's personality, its easy to customize with the optional Clek jacket booster seat covers in kid-friendly colors and patterns. Change your seat's look as quickly as they change their minds REMOVABLE FABRIC: The Clek Ozzi Backless Booster seat has a unique removable cover for easy cleaning. We know that mess happens, even with the big kids , Age Range - 4 years and above