Bare Decor Asi Genuine Teak Wood Flexible Table Top Placemat or Sofa Arm Tray, 1 Mat Genuine solid teak wood (Tectona grandis) is naturally mildew and mold resistant Artisan Made Green Sustainable Product Dimensions: 19"W x 12"D x 0.25" H Perfect fit for your sofa arm table up to 12" wide