The assembly instructions left much to be desired but we managed to work it out.  The chairs are not luxury items but for the price, so far, so good.  Not sure how hard wearing they will be as the legs, in particular don't seem very robust and unfortunately, I didn't think ahead about the design.... it is very easy for food crumbs to find their way into the space between the cushion and the chair for my young son.  Will need to hoover it regularly.  Check the measurements before you buy as these are not the same height as our previous chairs.