Pipedream Products Pump Worx Auto Flow is a rechargeable vacuum pump with automated and manual suction controls for adjustable operation. Built-in motor with 10 automated suction modes, including 3 continuous intensity levels and 7 intermittent patterns. Manual suction button activates vacuum while held, allowing gradual pressure adjustment while maintaining the current pressure level. Soft silicone sleeve forms an airtight body seal for consistent suction. Quick-release button provides immediate pressure relief. Materials Polycarbonate, ABS Plastic, Silicone, & TPE