This affordable Fisher Price high back booster seat is suitable from 9 months to 11 years approx. and has side impact protection. It comes equipped with a height adjustable head support, so you use the seat with the back unit attached for extra protection. There is a 5 point harness with quick release buckle. The shoulder harnesses are tightened individually for added safety. Helpline 0116 2844910. Dimensions 50(L) x 45(W) x 71(H) cms.