Master Series Viper Nipple Suckers Black from XR Brands. These Super Snake Bite Suckers will take your nipple play to the next level! These suckers create a vacuum on the nipple and surrounding area for an erotic feeling of suction that often results in larger, more sensitive nipples. Simply place over the nipple and squeeze gently with your fingers to attach. Enhance the overall sexual enjoyment for both you and your partner with these portable, easy to use nipple toys! Measurements: approximately 1.5 inches in length and approximately 1 inch in width. Color Black.