The Mountain Buggy Duo is perfect for twins, an older child & a newborn or two toddlers. Both seats are suitable from newborn to 5 years. The seat units are super comfy & have 5-point safety harnesses, one large detachable bumper bar that covers both seats, & a footrest. The buggy also has individual sun canopies which have flick out sun visors to offer extra shade on sunny days. Both seats are individually adjustable & have multiple recline positions ranging from fully uprigght to a lie-flat position for newborns. Parents will love the large shopping basket which can hold up to 5kg of essentials. The rear wheel suspension & 12 inch tyres make manouvering over any terrain a breeze.