Ichiban Kuji is a lottery handled every months by Banpresto. Each session features a specific set of Shonen Jump titles with exclusive lots, sometimes along other more common products. To participate to the lottery and maybe win items, you must buy ¥500 tickets in Japanese convenience stores (also called combini), toy stores like Jump stores, bookstores or Namco game centers. Premium sessions may call for ¥800 to ¥1,000 priced tickets instead. Generally, one store gets a pool of lots, containing a total of 100 lots with their accompanying ¥500 tickets. Some stores actually even allow people to pre-order a whole pool for the regular wholesale price of ¥50,000. The quantity of each prize is fixed by Banpresto for one pool.