For partnered play, this extender is designed to add length and girth while including a stretchy ring around the scrotum. That combination gives you an option focused on added size, with a separate feature intended to help delay ejaculation. The Natural version uses proprietary Sensa Feel technology. The product description says Sensa Feel mimics the feel of the human body, warms to body temperature, and has some give. To use it, stretch the Cock Xtender over an erect penis before entering your partner. These stated functions let you choose an extender with both added-size and ring features. Added length: It is designed to extend the penis by 2.5 inches. Increased girth: The extender is also designed to increase girth during use. Stretchy ring: The ring encircles the scrotum and is intended to help delay ejaculation. Sensa Feel: The material warms to body temperature and has give, with a feel designed to mimic the human body. Stretch it over an erect penis as directed, then use it for partnered sex. If added length, increased girth, and the encircling ring are the features you want together, this design brings them into one extender.