Ultra Soft Kisser Buttons provide an anchor point that shooters can use to ensure consistency and tight groupings. These kisser buttons are remarkably soft, yet virtually unbreakable. They are contoured to fit comfortably in the lips and can be placed above or below the nock. Ultra Soft Kisser Buttons come in two sizes to fit on nearly any bowstring and are split for easy mounting (close easily with Flex-Fletch adhesives). Choose from one of seventeen colors; even match them to your Flex-Fletch vanes!