The Safety 1st Grow and Go Sprint All-in-One Convertible Car Seat is designed to adapt with your child s growth offering three stages of comfortable seating from infancy to 10 years old. As toddlers reach their next milestones it transforms into a booster car seat making it a versatile all-in-one car seat suitable for kids up to 100 lbs. With the QuickFit™ harness headrest and harness adjustments are smooth and straightforward providing peace of mind as your child grows. The seat pad is machine-washable and dryer-safe. Conveniently this model includes harness holders for easy entry and exit and two removable dishwasher-safe cup holders. It’s ideal for families looking for a comprehensive car seat solution transitioning from infant car seats to advanced harness car seat stages accommodating various needs like a forward facing car seat. The Safety 1st Grow and Go Sprint meets or exceeds federal safety standards providing peace of mind on each journey. From infant car seats to convertible car seats this model is an excellent choice for those seeking adaptability and longevity. Actual fit may vary. Not all children will comfortably fit in the seat for the full weight and height ranges listed.