The KeyFit Car Seat Base is a fitting base available as a separate accessory and only suitable for use with the Chicco KeyFit group 0+ birth to 13kgchild car seat. The handy base, which has an easy to use leveling system, remains fixed to the cars seat allowing you to fit or remove the KeyFit car seat easily and safely. The base is fitted using the 3-point car seat belt system within the vehicle and has a rebound bar to aid stability. It features a bubble level and an adjustable leveling foot to help parents check the right position of the base to optimise safety and comfort. Its also has a handy storage compartment for the instructions !