


Battery-powered cock pump with electronic vacuum system. 9-inch medical-grade acrylic cylinder with measurement markings for tracking expansion results.
Key Features:
Electronic pump creates consistent vacuum pressure without manual effort
Medical-grade acrylic cylinder withstands pressure while providing visibility
Permanently etched measurement markings track progress with scientific precision
Generous 9-inch length accommodates substantial expansion during pumping sessions
Included silicone ring maintains pumped dimensions after sessions end