An extra MESA MAX 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! Specifications: • Load leg for increased safety & reduction in head/neck injury • Anti-Rebound+ Panel for increased safety • Bubble level indicators on both sides to aid in getting correct angle during installation • Built-in lock off for secure seatbelt installation • Streamlined, low-profile base with finished bottom • SmartSecure System + Red-to-Green indicators