The revolution just got extended! The Evenflo? Revolve360TM ExtendTM All-in-One Rotational Car Seat with Quick Clean Cover offers the extended security of rear-facing all the way up to 50 lb. Child safety experts say the longer your child remains rear-facing, the better, and the Revolve360 Extend is here to help with peace of mind all the way around. A spin-off of America?s bestselling rotating car seat, the Extend makes it easy to get your child in and out of the car with just one hand. Convenience by design doesn?t end there. This innovative car seat comes with a zip-on, ergonomic leg rest to add comfort for growing legs. Install just once for rear-facing and forward-facing ? Sure360? Safety Installation System with LockStrong? belt-tensioning system and Tether360? technology keep it safe, secure and simple. The best swivel car seat is one that lasts! The Extend, the only car seat you?ll ever need, grows with your child for 10 years with 3 modes that adapt to every stage: rear-facing (4 to 5