1.Brushing finish is OK 2.Ingredients:60% wood powder,36% HDPE and other elements like UV531. ADVANTAGES:1. HIGH RECYCLABLE, NO-POISONOUS, ECO-FRIENDLY, SAVING FOREST RESOURCES, GREEN DECO MATERIAL.2.WITH THE LOOK OF NATURAL WOOD BUT LESS TIMBER PROBLEMS.3. MOISTURE/WATER RESISTANT, LESS ROTTEN(PROVEN UNDER SALT WATER CONDITION).4. BAREFOOT FRIENDLY, ANTI-SLIP, LESS CRACKING, LESS WARPING.5. ...