Baby Trends Sit N Stand LX comes with an infant car seat adaptor bar for the front seat that will accommodate all Baby Trend infant car seats and select models from other major brands while your older child can sit or stand in the rear seat. For added convenience, the Sit N Stand LX also features a swing-away child tray, a parent tray with two cup holders and covered compartment tray and a large basket. Recommended Use: Front Seat – for children who can sit upright unassisted to 40 Lbs; Jump Seat - 2 1/2 years to 40 Lbs