An extra Mesa infant car seat base allows you flexibility and ease of travel. Ideal for multiple family vehicles – no more swapping car seat bases between relatives, babysitters, or spouses! * SmartSecure® System installs in seconds * Red-to-green tightness indicator * Built-in lock-off for secure seatbelt installation * Level indicators on both sides * Streamlined, low-profile base * Smooth, finished base bottom won’t damage car interiors * Infant carrier not included * Not compatible with Mesa Max Infant car seat