Add a sensation of sucking to your nips with Kink Nipple Sucker Set. Tweak nipple suckers, another unique design from the Kink by Doc Johnson collection, create powerful natural suction for authentic sensations and engorgement that traditional clips can't provide. With a simple squeeze, the Tweak set fits perfectly against the skin and creates a strong seal for hands-free fun-just attach to each nipple and watch them swell through the visually stimulating sheer black material. Total Length: 1.75". Width: 1". Circumference: 4".