The innovative technology behind the Cybex Aton M and SafeLock Base combination offers easy functionality in a safe and thoughtfully designed infant car seat. The Aton M Linear Side-Impact Protection (L.S.P.) System helps absorb impact forces, while the adjustable headrest allows the seat to grow with your child so their delicate head is fully protected. The Aton M can also be used as a travel system with the CYBEX and gb strollers and with those of other well-known producers. The safe lock base dimensions are 26.3 x 15.4 x 13.9 inches