Stages Car Seat - CoalA brilliant travel companion designed and engineered to grow as quickly as your child, from 0 7 years. Versatility that makes every adventure effortless. 3 Seats in One Group 0+ 1 2 car seat begins as a rearward facing infant seat up to 18kg, converts to a forward facing Group 1 seat and then to a Group 2 seat Instant Harness Headrest Heightener 5 position harness and headrest heights adjust simultaneously and with just one hand without uninstalling