The Pump That Puts You In Control!Dual system includes both manual and powered pump.Manage stronger and enhanced erections with a vacuum therapy system that comes with two operating modes —– an ergonomic hand pump plus a battery operated pump. Each pump connects with the 10" x 2" vacuum cylinder. Slide penis past TPR donut seal into the cylinder. Start pump to engorge your penis to its maximum capacity, hardness and size. Experiment with each pump. You may prefer starting your session with the hand pump, then maintaining with the battery operated pump –– or the other way around. Use the set of 4 stretchy penis rings to help maintain erection for up to 30 minutes at a time. Each ring has a unique pair of easy to grab finger handles for quick on/off, even when lubricated. • Sinclair Select Endow Power Pump System• 2 pumps in one kit, each with a quick-release valve• Includes 4 different penis rings: 2.25", 2.5", 2.75", 3" diameter• 10" x 2" cylinder is marked in inches to let you m

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