Women's DUAL EXERCISER PUMP - Easy to use, Cups with suction Pump bulb and release valve. The Cups are designed with an Airtight Rim which will help create the Vacuum seal. The Cup is made out of High Quality Plastic with the Squeeze style bulb. - Always use care and caution when using a vacuum pump, always confer with and get advice from your Doctor. We have other Pumps and Enhancers available here on Amazon from y2Female get a few Unique items today.