This step is use in big Spa,hottub and whirlpool. Spa step with boxModel:STB02-80Spec.:800*600*490mmDescription: with boxColor: Gray/Red/Coffee/Teak woodThe dimension can be changed according to your request. Benefits:-Waterproof,damp-proof,moth-proof,mildew-proof,UV-proof,fire resistant,corrosion-proof-Green,Environmental-friendly,save-engery products