Engineered flooring precisely kiln dried from 6% to 9% moisture content, tongue-and-groove fit, end matched. RIO Collection Prefinished Solid features a tough Bona UV cured aluminum oxide finish providing an extremely durable and stain resistant surface. RIBADAO guarantees prefinished surfaces for up to 50 years from the date of purchase. Floating, Nailed or Glued-down application. A complete line of prefinished accessories are available, including shoe molding, reducer strip, T-mold, threshold transition, and stair nosing. Sweep, vacuum or dust mop. Blot up spills with a damp cloth. Clean periodically with a leading hardwood floor cleaner (follow directions on bottle).