Using AQUA's technology of extremely stable, high performing, completely water-proof, fire retardant, skid resistant, and high density solid core flooring that resists indentation. AquaPlus Stairs & Risers can now be easily installed on different types of stairs bases such as concrete, ceramic, or existing flooring, allowing you to keep your flooring choice consistent throughout your project.   It is environmentally friendly as it is 100% formaldehyde free and is made out of stone -plastic composite.  Since it is completely waterproof, you don’t have to worry about  kids spilling, or pet accidents.