HEY WAVE 2 Pack w/ Storage Bag. The HEY WAVE Wristflag is a one-size-fits-all, high visibility flag (2"x19") comfortably wrapped around the wrist of any water sport participant. In distress situations, the wristflag can be easily unwrapped and deployed to alert captains of their location while increasing visibility to oncoming boaters. Quantity 2 HEY WAVE's per package inside 1 HEY WAVE storage bag.