Rustic Grey wood look waterproof vinyl plank that clicks together to create a floating floor. Made with pure virgin PVC. Features a premium 6 mil aluminum oxide urethane wear layer for long lasting durability. Waterproof means no expansion and contraction due to moisture. You can install this beautiful plank flooring in those areas that you would not dare install laminate flooring. Easy maintenance. Not be installed over an underlayment padding. Ortho Phthalate free and GreenGuard Gold certified. Installs on hard, flat, level surfaces.