Fairly simple product that is clearly marked to show which adapter fits on what side. Easy to click onto place on to the Oyster 3 pushchair and i-Size capsule carseat. Initially we thought the adapters were quite big (in height) but when on the pishchair you see why as it helps to increase the height of the car seat on the pushchair to make it easier for you to access the baby. My only small recommendation is that Babystyle Oyster should include a small instruction manual that shows you how to dismountthe adapter from the carseat. I soon figured this out as being the 2 small light grey buttons on the upper side of the carseat but initially was quite confused. That said, a great product otherwise.