The Britax Parkway SG Booster Car Seat in Onyx belt positioning booster features industry leading side impact protection and slide guard anti-submarining technology to manage crash forces and minimize injury. Britax Parkway SG Booster Car Seat in Onyx has supportive comfort foam and soft, padded materials promote proper seat use and enhance safety. This Booster Car Seat in designed to fit three across in most vehicles, the booster seat is appropriate for children 40 lbs and up. A removable backrest, dual retractable cup holders, color coded belt guides and a one hand quick-adjust head restraint make the seat convenient and easy to use each and every time. Britax has been a pioneer in child passenger safety for more than 35 years, with a legacy of leadership in developing innovations that enhance the safety of child car seats and improve their ease of installation and use. At Britax, our commitment to improving child safety is unparalleled, as evidenced by the fact that all Britax products undergo the most rigorous testing in our industry at five Britax testing facilities worldwide. At Britax, we also work closely with vehicle manufacturers to encourage design improvements that enhance the performance of child car seats. In addition, Britax maintains an ongoing dialogue with consumers, child passenger safety technicians and other child safety advocates to ensure proper installation and use of child car seats and develop new ideas to improve their safety and ease of use.