Suitable from 6 months up to 17kg 3 years the bob revolution pro has a swivel front wheel which offers ultimate versatility it is approved for running and skating and can also be used for everyday trips around townswivel front wheel great for agile manoeuvring and tight turning lock it in place for increased stabilitydrum handbrake the new drum handbrake provides additional stopping assistancenew frame design new black powder coated frame for a sporty sleek lookadjustable handl