Ezheat Waterproof Tileable Shower Niches are ideal for creating extra space in your bathroom for your daily shower essentials. Made from high-quality XPS foam with a polymer cement mortar and fibreglass mesh, the Ezheat Shower Niches are ready-made to be installed and can be tiled immediately. Features: ---Completely Waterproof ---Provides Thermal Insulation ---Ready to Tile ---Lightweight and Easy to Work With ---12mm Thick Board, to Fit Wall Cavities 100mm or Deeper ---Comes Already Constructed Which Guarantees the Conformity and Size.