... groove is made of wood and polymer, it is water friendly, 100% recycable, easy to install, guarantee for 10 years Item code ... like walnut, teak, maple, oak etc.Variety of colors.can make special color with bulk quantity orderReal wood feeling for touching;Water-friendly ... .anti-skidprofile size :3000mm*70*61mm WPC closing groove , wood plastic composite closing groove, 70*61mm,easy to install,guarantee ...