Size Matters - Pump Cylinder 2 x 9 Inch Bridal What give these powerful suction

What give these powerful suction are the four springy rings that make the nipple-tube spring open without collapsing like old snakebite suckers-- we made the walls thinner to allow for more pump and even larger sucked nips

Very slippery on surfaces

screws type and no need of soldering

The O-ring is compatible with most leashes so you can lead around your sub in style

Size Matters - Pump Cylinder 2 x 9 Inch Bridal What give these powerful suctionDescription Each cylinder is hand crafted and made of the finest, industrial strength crystal clear acrylics. The cylinders are tapered toward the top to match the natural anatomy of your penis for maximum comfort. No gaskets are required. Each cylinder contains a state of the art air valve which allows for quick and easy disconnection from the pump while maintaining pressure within the cylinder. Measurements: 9 inches in length, 2 inches in diameter