Hello, I ordered width 50cm, length 60cm, thickness 20cm (which included the recommended 1” extra on the thickness). The width and length was correct, but the thickness was 8mm more than I ordered. And the extra 8mm was on top of the recommended (1”) to be added to the thickness measurement! In the measurement instructional video, a cloth fabric was demonstrated, but no advice was offered for a leather cushion covering (which is what I have). I would strongly suggest, that a leather cushion cover does not have the same expandable properties as a cloth/fabric cover, and therefore, your instructional video falls short of proper advice. I have paid you £104.98 for foam fillings which were impossible to install, and in retrospect, I should have complained about and rejected, because you supplied me with an oversized order. I have been unable to install the above mentioned foam fillings, and have put it down to experience, and have now ordered ‘Reflex superior medium’. But please make sure the thickness is as ordered! Regards