I have put a 4, 5, 6 and a 7-year-old on the seat and they all fit on the seat well with no balance issues. Seat is very lightweight and rounded so it does not cause as much harm as a some others if they get hit in the face/body by the seat. Adjustable ropes are good quality and allow easy levelling of seat Recommend measuring the length of rope you need carefully to get the seat to hang at a good height for child before your order. Don't forget extension ropes or extra rope (also from this website) if you want to hang this seat from a tree (this seat just has metal rings at top of ropes). Ordered at 11am and it arrived at 10am next day. Took me 10 minutes to set up on a tree. Overrall, well worth the money.Ian (6 Jul 2020, 16:28)