Invigorating bubble massage feels great on tired feet. 3 Acupressure attachments allow for customized at-home spa experience. Raised nodes gently rub the bottoms of feet. Comforting Heat - fill unit with water warmed to your liking and heat maintenance feature helps maintain water temperature. Splashproof - integrated splash guard keeps water from splashing over the sides. Easy to carry without worry of spilling water. Toe-Touch Controls - convenient control at the touch of a toe so for uninterrupted foot bath experience. Fits feet up to men's size 12.