PopperExpress Cum Thru Undulating Penis PlugThe popper express penis plug extends the range of Hells Couture Australia into one of the largest collections of Penis plugs available. the ripples along the shaft are great for those that like to tug and pull onto their urethral toy with the attached ring which makes it look like a pierced penis. With a 70mm length and a diameter ranging from 6-8mm its perfect for beginners.