https://www.forttroff.com/products/penis-pump-cylinders
Penis Pump Cylinders, Clear Acrylic 1.75 to 2.25 Inch | Fort Troff
Clear acrylic penis pump cylinders, 9 inches long in 1.75, 2 or 2.25 inch widths. Quick disconnect valve holds the vacuum. Pump sold separately.
penis pump cylindersinch fortclearacrylictroff