We have all seen and all that! The largest on the skateboard and the little one in the stroller. System very convenient to assemble itself. Everything looks pretty solid, see in time. But the use is intended to be limited in time! Very simple. I enjoyed the storage strap. Anti-slip tray, all adjustable in width and height. Works well with my baby stroller comfort. Sold for children up to 20 kg (2 years) and this is the only reason why I put only 3 stars. Indeed, children are often transported older and / or heavier. But I think it works too!