Dragonfly Car Seat Adapter

We have the Avionaut pixel pro 2 so were unsure whether these would fit, I had read on another site that they were compatible, but nothing concrete to confirm eitherway until I gave them a go, so I can confirm they do fit which is great. They click and lock both to the car seat and the dragonfly frame as you'd expect. I would say they're a little on the expensive side for two bits of plastic, they don't seem overley engineered so am struggling to see how they are priced at £45? but needs must... Will give 4 stars as the value for money seems lacking, more of a capitve market pricing point one feels.