Better hurry they'll be gone in a... minute?... short while?... a burst of light?... Something.
Source
From the release:
WizKids, the industry leader in quality pre-painted collectible miniatures, released new DC Comics HeroClix: The Flash booster sets to North American retail today (please note that European release dates may vary). The DC Comics HeroClix: The Flash 5-figure Booster Packs feature the characters— past, present and future who have used the moniker of The Flash along with his infamous Rogues Gallery. DC Comics HeroClix: The Flash picks up the pace with the premiere of the new Speedforce power— making for exciting and dynamic game play that gives each speedster character their own unique twist.