Stage: Rear Facing Harness (4-30 pounds)Includes: Car seat base, Removable newborn head and body support, Machine washable fabricsSafety Features: SuperCinch LATCH installation, Side impact protection, 5-point harness, EPS Energy absorbing foamCompatible with: All Chicco strollers & most other brands with approved adaptor#1-rated infant car seat in AmericaEasiest to install correctly: ReclineSure leveling foot, RideRight bubble levels, SuperCinch LATCH tightener