Bare Decor Zen Spa Shower or Door Mat in Solid Teak Wood and Oiled Finish, 31.5 by 19.5-Inch Genuine solid teak wood (Tectona grandis) is naturally mildew and mold resistant Indoor or outdoor use (shower, spa, sauna, balcony, deck, RV, patio, lawn) Slip resistant and naturally warm surface Dimensions: 31.5 x 19.5" x 1.5" No Assembly Required