A used bike but still plenty of life left and priced appropriately to reflect condition.
Well maintained and welcome to inspect.
Frog Bikes are lightweight bikes for children.
55cm refers to inside leg measurement of rider not seat tube length.
They no longer make the 55 model but our children rode it between 5-8 years old.
More information about the brand/bikes.
https://www.frogbikes.com/en_GB/bikes/hybrid-bikes.html