Any shop around KPHB where a 2 year old can actually try out a balance bike?

Our son is 2 and has been eyeing the older kids' balance bikes in our building park for weeks. Online the sizes are all over the place: one says 2 to 5 years, the next says 'from 85 cm', and none of the reviews mention how tall the child was. I'd much rather he sat on two or three before we pay for one. Is there a shop around KPHB, Kukatpally or Miyapur that keeps a few assembled so kids can try them? A second-hand one from someone nearby would also be fine, if your child has moved on to pedals.