These smooth-edged glass suction cups are perfect for your cupping needs. Simply squeeze the rubber bulb to easily create suction on the desired area. Warm water or Vaseline can also be used along the cup edges to increase suction. A cool and dry place should be used for storage, to minimize the aging of the rubber bulb. Cups can be sterilized by autoclave (remove rubber bulb first), or with alcohol.
Please note that rubber bulbs contain latex.