The Juicy Jays that are currently posted, are King Size Slim. So more on the blunt size, where 'standard' and the 1 1/4 are more the normal cigarette and joint size.

I can also get Juicy Jays in every flavor in the normal 1 1/4 size.

Check out this link for an idea of the size. http://www.cigaretterollingpapers.co.uk/ekmps/shops/starsmokes/resources/Design/rollingpapersizes.png