Free your arms from the straps of your purse with CardNinja. The CardNinja is incredibly convenient with its ultra-slim design and can hold cash and up to eight cards in one compact, convenient spot—on the back of your smartphone. CardNinja’s spandex sleeve and 3M adhesive ensure cards and money stay in securely, even if you flip it over. It’s simple: pick from a rainbow of colors—Ninja Black, Steel, Eggplant, Gold, Blue Raspberry or Magenta-- slap it on the back of your smartphone and go! {Product provided for review/feature consideration}