***NEVER IN AN ACCIDENT*** Peg Perego PRIMO VIAGGIO 4-35 NIDO Car Seat Base The base includes a leg load that can be adjusted 10 different positions and has an Energy Management Foot that absorbs energy by crumpling upon impact. Built-in anti-rebound bar attached to base provides superior protection in case of collision. Compatible with all Peg Perego infant car seats. *Second base available without a leg (Peg Perego PRIMO VIAGGIO 4-35 BASE)