Features: -4-position adjustable base helps ensure an accurate install -Easy-to-read level indicator helps eliminate installation guesswork -Graco® ProtectPlus Engineered™ - A combination of the most rigorous crash tests that help to protect your little one in frontal, side, rear and rollover crashes -Attaches with a one-step secure connection to Graco® infant car seat using Click Connect™ Technology -Convenient, LATCH-equipped stay-in-car base for easy installation