Modes of use: infant car seat infant carrier with wheels infant carrier without wheels stroller. Retract the wheels to carry up an down steps. Anti-rebound base helps absorb and dissipate crash forces. No-rethread harness adjusts to 8-positions. SensorSafe - use app to alert for 4 potentially unsafe conditions. LockStrong Installation and Quick Connectors. Wheels nest securely in the wheel wells in base. Full coverage UPF 50+ canopy. Removable carryall storage bag. For infants as small as 3lbs and up to 35lbs or 15.7" to 32".
