what bb for new howitzer cranks on carrea vulcan

Hi I realy like the look and ratio on these cranks but what bb will I need and length to fit carrera vulcan, bb Needs to be hard wearing but also not to pricey
http://www.chainreactioncycles.com/Mobi ... elID=31151
http://www.chainreactioncycles.com/Mobi ... elID=31151
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will any howitzer bb fit, whats the different sizing when you go to order ? what is the standard size? cheers rich
thats the bit im really unsure on
Thanks for that , just have to find a way of buying cranks bb casset and chain without the wife going nuts.
Parktools :?:SheldonBrown