Normally cylinders are made of soft pliable materials, such as gel , silicone , rubber or a combination of these.
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The hand pump allows complete control of the effect and it can be stopped at any moment by releasing the valve on the tube.
This device derives from the male prototype, the penis pumpwhich appeared in the early s and is intended for sexual enhancement, or the treatment of erectile dysfunction. Categories : Female sex toys Clitoris a hand pump hand-squeeze bulb.