To increase sensitivity by gentle suction. silicone comfort nipple suckers are ideal for nipple-toy beginners. Sticking in place with suction. you can free your hands for other play to evoke sexual climax and enjoy mind-blowing experience. For the best suction and pleasure. apply a small amount of water-based lube to the rim of both suckers before applying them to the nipples.Remove both suckers after around 10 minutes and follow up with nipple strokes. licks and pinches to make the most of their new receptivity to touch.- Material: Silicone- Weight: 18.2 grams