This is the largest flexible pump in the world! Push it in, pump it up, pull it out and you can repeat as many times as you like. The vacuum is maintained even when you remove the pump ball without loss of pressure when you use the patented Doc Johnson technology with quick disconnect coupling. The pump head is even shaped like a penis for realistic sex play. The pump comes with a special reduction ring that provides a good seal regardless of penis size. Phthalate free and non-toxic to the body. Available in red and transparent.Innovative inflatable tube in transparent cylinder With patented quick disconnect coupling Includes soft comfort ring for sealing The pump ball can be removed without pressure loss firm, flexible design.