I use a 3 ball roller, an overseas edition fro Brunswick.
http://www.michaels-proshop.de/shop/img/bags/brunswick/roller/int-3-47-g-2.jpgThese rollers appeared en masse and cheap during spring, so I replaced my 2 year old roller despite the flashy colors.
This Brunswick International Zone 3 Ball Roller is very spacious, with many additional pockets (you can never have enough space for other stuff) and it even has some velcro strips inside to hold the balls in their cups when you travel or haul the thing around. You can also place a lock on the zippers, also for travel convenience (and handy when you go to a tourney where you have to leave the roller somewhere in the back of the lanes wher you cannot keep your eye on it permanently). I also like the big, broad and soft padded wheels which make for a silent roll and increase handling convenience.
Only drawback so far is the handle mechanism - it is integrated into the handle and does not work smoothly.
Additionally, I use a 2 ball tote (also a cheap International Brunswick bag) or an Ebonite 1 ball clip bag for the roller handle.
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DizzyFugu - Reporting from Germany
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