Key Features and FunctionsFeatureDescription & BenefitFolding/Collapsible DesignThe tub is made from flexible, durable material (like PP and TPR plastic) that allows it to collapse flat. Benefit: Saves significant storage space, making it easy to tuck under a bed, sofa, or in a closet. It also makes it highly portable.Electric Heating (Constant/Thermostatic Temperature)The unit contains a built-in heating element. You typically set a desired temperature (often in the range of $95^\circ\text{F}$ to $118^\circ\text{F}$ or $35^\circ\text{C}$ to $48^\circ\text{C}$). Benefit: It heats the water and, more importantly, maintains the water temperature, preventing it from cooling down during your soak.Massage Rollers (Manual or Motorized)The bottom of the tub has rollers or raised nodes. In some models, the rollers are motorized and move automatically (Shiatsu massage); in others, you manually roll your feet over them. Benefit: Provides targeted acupressure and deep tissue massage to the soles of your feet, which helps relieve tension, soothe muscle aches, and improve circulation.Bubble FunctionSmall jets at the bottom of the tub release streams of air bubbles (like a Jacuzzi). Benefit: Provides a gentle, invigorating hydro-massage sensation that helps relax and soften the skin.Multicolor / Light (Often Red Light)Many units include a red light (infrared light) or other colored lights. Benefit: The infrared light is often advertised to help improve circulation, promote cell activity, and generally enhance the therapeutic benefits of the soak.Herb/Salt CompartmentSome designs include a small box or container for placing bath salts, essential oils, or foot detox herbs. Benefit: Allows you to customize your spa experience with aromatherapy and additional therapeutic ingredients.How It Generally Works

1. Unfold: Expand the flexible tub to its full height and place it on a flat, sturdy surface.

2. Fill: Add the desired amount of water (preferably starting with warm water for faster heating) up to the indicated max fill line.

3. Power On: Plug in the unit and use the control panel to set your functions.

4. Customize: Select the desired water temperature, turn on the bubbles, and/or activate the massage rollers (if motorized).

5. Soak: Place your feet inside and relax. If the rollers are manual, gently move your feet back and forth to apply pressure. The heating element will ensure the water stays at a comfortable, constant temperature for the duration of your session.

6. Clean & Store: After use, the water is drained through a drain pipe or outlet, and the tub can be rinsed, dried, and folded flat for easy storage.