... drain and ultraviolet radiation proof,easy to install by anyone in just minutesNon-slip,ants-resistance,water-proof,no grout,cement ... ,nails neededYou could deck them in your patio,balcony,garden,sunroom 3Specification:Item No.:PS4P30210H DGMaterial ... :PS,PE baseThickness:1.2cm(PS),1.5cm(PE base)Dimension:30*30*2.7cm 4Packing details:9pcs/CTNN.W ...