simple and powerful Rotary Nipple Suckers are perfect for anyone looking for
some consistent, strong suction. All you have to do is place the base of
the sucker firmly against the nipple to create a seal, and then twist
the easy-grip control cap to create immediate suction. Enjoy a light
sucking sensation or twist the knob further to create a serious vacuum.
Just turn the cap backward to return the internal plunger to its
original position and release the suction when you are ready. One pair included.
Measurements: 4 inch overall length, 1.17 inch inner diameter