... the bathtub don't need to be added water.3. Portable, removable, durable, folding,save water & space,dismountable,easy ... enhances absorption of nutrition6 Regulation of skin PH,removes spot and dark,restore smooth and flexibility skin etc. ... CleaningEasy and FastHeat Insulation effectMore than 1 hourFeatureFolding, Removable, Portable, Simple operation, Save water and space, Lasting heat insulation ...