Elong Nipples suckers work...and look so cool. They will suck any size nip and are deep enough and big enough to fit small to medium piercings. These stay on - the base flares out for more contact with skin. What gives them powerful suction are the four springy rings that make the nipple-tube pull open without collapsing like other suckers.Material: Flex TPRDimensions:Width 1.25-1.5 inchesHeight - 2 inchesDepth - 1 inch Elong