thatsnotmymonster- puky do a very small balance bike. A friend's ds was rather petite for his age and he had one (dd's one is medium sized, I think). Because the middle bit (technical term!) between handle bar and saddle is so low, it makes getting on and off much easier for little legs.
Am not in any way linked to Puky - although sounds like it from my posts, lol
Biscuitstuffer - only reason we need to sell it is because dd has pretty much out-grown it and is desperate for a bike with pedals (and a seat for her doll). I wanted to get the balance bike in the next size up but madam dd insisted on a pink bike and this particular one only comes in one size.
Dd is 4yrs and very tall, she can still use it for longer but has been ready to pedal for a while as she balances on it (and her two wheel scooter) without any problem.