While I was away on company trip, J bought a new bicycle for Yuan. This bicycle has a metal holder behind the seat, so in one stroke of ingenuity, J thought about installing a seat on that metal holder.
This is how he did it.
He removed the legs from the Ikea high chair that we have at home, and fastened the seatbelt onto the metal holder. So the seat is now secure. It is so much fun watching the kids take turns to ride the bicycle with the baby in the seat.