High Gloss 3/4 in. Solid Hardwood Floors have a 7-layer aluminum oxide finish, providing everyday wear and tear protection. This product has achieved Greenguard Indoor Air Quality Certification and has been tested for more than 10,000 volatile organic compounds, including formaldehyde, to meet these standards. The tongue and groove profile allows the flooring to be installed on and above grade. The elegant look of high gloss floors will bring added beauty and style to your home.