SeaTeak Teak Shower or Door Mat, Oiled Finish Rectangular dimensions: 1.5 inch H x 19.75 inch W x 31.5 inch D Use for indoor or outdoor showers Use on flat surfaces only, do not use in bathtubs To prevent oil stains, wipe with a damp cloth before using Clean mat with a teak cleaning product or a mild detergent and rinse thoroughly, over time teak will turn a natural silvery-gray color, a purely cosmetic progression: to retain the shower mat's original golden brown color, use a teak protector or sealer