Uro Matrix Pos-T-Vac Mach Ring #8 Size, Low Tension

• Durable tension rings designed to be used with the Erec-Tech vacuum penis pump.
• These superior quality tension rings were designed for your ultimate comfort.
• Made with a soft gel, they are flexible and stretch over the cylinder before using the Erec-Tech vacuum pump and are applied to the base of the penis for a full and satisfying erection.