Hi Quik,
saw your question on Max (BBA) message board. Don't know if you have got your 4 ball roller yet..if you have, ignore my comments. If you are still to buy one..stay clear on "Storm" rollers, especially the "Streamline" collection. Very bad build quality, zips that freeze in position, handles that refuse to go up and down. Have mine for a few years, its held together with gaffer tape. Will be getting rid of mine next month. Getting a 3 ball roller for my birthday off the other half