These nipple suckers can be used on any body part you want suction and to increase sensation after removed. Just squeeze the air out and apply it to the skin so they can suck the tissue into them as they open back to full size. Since these suckers have a larger bulb on top, you can squeeze out more air to get more suction than smaller models. Some people like to add lube or saliva at the base to help them seal. Made of 100% silicone.

NEED TO EDIT SIZES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ring diameter: 1.25" (3.2 cm)

Length: 2.5" (6.4 cm)