Sennheiser HDB 630 Pad Size

Hi all, I am looking at purchasing the Sennheiser HDB 630 Closed Back headphones and just wondering if anyone knows the dimensions of the ear pads that come with them please? I would like to know if they would fit over my ears comfortably as I don't live close to any store that sells them, so I cannot go and see them in person. It is quite a lot of money to spend if they are not comfortable. Thanks for your time. :)