Thule Yepp Nexxt 2 Maxi Child Bike Seat Frame Mount - £40

[Juju33]

My kids have outgrown this chair now, so it's looking for a new home. This would be £150 brand new, but mine has 3 years of use (though basically none in the last year since we changed to an e-bike). Two noticeable things to call out:

1. the red reflector light on the back fell out, never to be seen again
2. a fox chewed the foot strap one night in our back garden 

Both can be replaced by Thule, if I'm not mistaken. There is a plastic tie on the back that you may be able to see - I had used that to clip on a flashing red light for safety (the reflector that was there did not flash). 

And to confirm, this is the version of the chair that is attached to the bike seat post (rather than a pannier rack) and the mechanism for attaching the seat is included, along with the key that lets you remove the seat from the attachment. 

Collection from SE22 close to Dulwich Library.