Silicone Pump Sleeve Attachment
Less plush and porous than the Donut Pump Sleeve, the Silicone Pump Sleeve Attachment provides a comfortable pumping experience in a pure silicone form. As this sleeve is made of silicone, it can be used with both oil and water-based lubricants.
Silicone Pump Sleeve Attachment adds a little bulk to the opening of penis cylinders and made reduce the interior diameter of the cylinder.
While the manufacturer states this pump sleeve will accommodate cylinders with an external diameter up to 3″, it does seem to work best with cylinders with an external diameter below 2.5″
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