Joie Basil booster seat: adapting comfort for growing kids. This 2-in-1 design transitions from highback to backless, accommodating children from 40 to 130 pounds. Lower anchor attachments deliver a secure connection, maintaining stability even during abrupt stops. A 7-position headrest adjusts effortlessly with one hand, ensuring a customized fit. Cleanup is a breeze thanks to the removable, machine-washable cover, and dual cup holders keep essentials within reach.