The Colossus Pump combines a penis pump with a soft TPE masturbator sleeve for a more immersive pumping experience. Its vacuum design creates controlled negative pressure around the penis, while the sleeve is intended to form an airtight seal and maintain suction through each pumping cycle.

A silicone donut at the base helps create a close seal during use, supporting consistent pressure as you operate the pump. The design is suited to adults seeking the sensation of vacuum stimulation alongside a textured masturbator-style enclosure. Apply suitable lubricant to the sleeve and seal area before use, then release the vacuum before removing the pump.