Gazelle S Seat Unit - BlackAge: from birth to approximately 4 years old Child weight: 22 kg max. For growing families When your second child is old enough to sit upright, simply add a Gazelle S seat to transport both children with the same level of comfort. Easy to install parent facing or forward facing, the Gazelle S seat comes in five fantastic colors that perfectly match your Gazelle S stroller. Plus, its secure, one strap harness is designed to install your child in