Metal circular shower head with filter and adjustable water flow. - Type: Shower head - Included: Filter, Instruction manual - Material: Metal - Design: Circular head Ultra-fine bubbles are ultra-small bubbles that adhere to sebum and dirt, washing them away. Annual water-saving effects can also be expected. Thank you for viewing. I chose this as a wedding gift for a friend, but it was the wrong type for my home. I took it out of the plastic, hoping to use it, but it's unused.