Adorn Decor Water and Mold Resistant Teak 35 X 21-Inch Shower and Bath Mat Teak Imported MOLD RESISTANT - Superior water resistance properties compared to Bamboo. With proper use, Teak is guaranteed to remain mold free in moisture rich environments. TEAK OIL - Stained with a rich Teak oil finish for enhanced shine and life long protection. If outdoors in direct sunlight Teak will naturally changes color over time. We recommend using a sealant to prolong the color and/or re-staining once every 2 years (depending on sun exposure). FRAME DESIGN - Unique frame design for a modern and luxurious look and feel. SUSTAINABLY HARVESTED - Tectona Grandis species Teak wood used in this product and is sustainably harvested from Teak farms in compliance with Indonesia's Legal Wood Teak preservation program.