... +metal Item size: 52*48*90 Baby car safety seat, for new born baby (0-4 years old), 0-18kgs approx Material : HDPE ... harness system3,New security buckle design, easy for operation4,A "one pull" belt-conditioning system.5,Thicker head protection.6,Comfortable,breathable ... and use, do not undermine the car itself. Baby car safety seat, for new born baby (0-4 years old), 0-18kgs approx