The egg3 Shell has enhanced inner-body padding (for use from newborn), which provides key support for both the side and upper leg muscles on car journeys. As their muscles strengthen, develop, and grow, these key protective cushions can be removed enabling baby to use the seat up to 13kg. The Egg Shell car seat can be paired up with Egg2 / Egg3 stroller to create a full travel system (sold separately) Features Suitable for rearward-facing travel from 40 to 80cm (birth to approx. 15 months) Features a retractable four-position canopy Three handle positions Complies with the UN R129/03 3-point safety harness with push button release The one-click installation makes the base very easy to use It works with the ISOFIX system and features installation indicators that provide confirmation you have correctly installed the base and seat, Suitable to use with egg® Shell Car Seat Conforms to R129 (iSize) Is a more time-saving way of installing a car seat Less likely to install incorrectly Isofix connection points Extendable support leg Rebound bar Visual indicators for safe and hassle-free installation Technical Specifications Conforms to R129 (iSize)