If you are looking at this, you appreciate that this is a well designed, stable tag along kids bike. This is the early model that went on to become the Isla Bikes Trailer bike. It includes the rack, which is vital (don't buy one of these without the rack). There is a Sturmey Archer three speed hub, which is handy when you need help getting up a hill. I used this with my daughters from age 4 to about 8, when we switched to a tandem. It's loads of fun and very safe and secure, much better than the ones that clamp on to the seat post. Everything works and I checked the seat pin is not frozen. There are chips and scrapes but no dents in the frame.
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