Fuller Brush Clean Cotton Moth Block Kills and controls moths and carpet beetle larvae for up to six weeks Utilizes the strongest and safest moth-killing protection available Scent leaves clothing quickly and does not linger like traditional moth ball odor Effective in closets, drawers, basements, attics, storage bins, hampers, lockers, and more Effective in closets, drawers, basements, attics, storage bins, hampers, lockers, and more