Silver ReFa KOKO1-MB showerhead, made of plastic and metal, approximately 22.5 cm in size. - Brand: ReFa - Model Name: KOKO1-MB - Material: Plastic, Metal - Color: Silver - Size: Approximately 22.5 cm Thank you for viewing. I've used it for about a year. There's water scale, so you'll need to remove it with something like a scrubbing sponge.