... the bathtub don't need to be added water.3. Portable, removable, durable, folding, save water & space, dismountable ... and flexibility skin etc. SAUNA BATH, PERSONAL SAUNAS, STEAM SAUNA, PORTABLE AND FOLDING SAUNASBrand NameFDBModel NumberFDB-097 Steam ... CleaningEasy and FastHeat Insulation effectionMore than 1 hourFeatureFolding, Removable, Portable, Simple operation, Save water and space, Lasting heat ...