This quality acrylic vacuum cylinder is individually hand crafted in the USA and designed specifically for FTM, transmen, and men of trans experience who are taking hormones. Designed with safety and comfort in mind, this individually sold cylinder works with the Deluxe Brass Hand Pump. Use the FTM cylinder to explore the pleasurable sensations of suction, as well as achieving temporary enlargement for longer, thicker pre-op or non-op genitals. The base of the cylinder provides a vacuum seal without an extra rubber ring or attachment; use it with the quick-connect safety valve to maintain pressure and keep the cylinder attached even after you disconnect the pump. Suitable for wet or dry use. Built to last with quality materials; comes with a one-year warranty. Clean with warm water and soap.