The fully equipped and comfortable second seat with a 5-point harness system is suitable for children from six months old. It can be easily and quickly attached to the stroller's chassis using adapters and also removed when not in use. The seat area is generously sized and softly padded. Different sitting and reclining positions are ensured by the 2-position adjustable leg rest and the 4-position adjustable backrest. The wheel covers provide additional protection against dirt. The Babystyle OysterMax second seat can be combined with the reversible main seat unit, the car seat, and the baby carrier, offering maximum flexibility. The OysterMax second seat with a 5-point harness includes adapters, wheel covers, and rain protection. The 2-position adjustable leg rest and the 4-position adjustable backrest provide added comfort. The seat is easy to attach or remove from the chassis, offering a high degree of flexibility. The adapter is also suitable for the Oyster baby carrier.