penis tube length 48mm
penis tube diameter 32mm
come with 4 rings in 1 set(36mm/40mm/45mm/50mm)
Note:As the resin is of Expansion on Heating and Contraction on Cooling characteristics,
if you find the tube is difficult to install into the ring,
you can put the ring in hot water soak for two minutes before wearing,then installation will be more easier.