is this a "special" new type of Arai ???
  from description:
 "There are a few marks on it from storage but it has never been dropped. I can prove this because it is a top of the range arai helmet, they have a system in them, where if you are in a crash or the helmet takes impact through being dropped or whatever, then all the inside of the helmet goes white, Mine hasnt done that" 
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http://cgi.ebay.co.uk/ws/eBayISAPI.d...DME:L:RTQ:UK:1