Main material: Imported PE plastic raw material . Cixi Weller Metal Containers Co., Ltd,the member of Asscociation of Rotational Molders(ARM) International, manufacture in rotational products, such as traffic safety. Common colors: Orange, green, white, black and blue Performance: Once shaping, smooth inside and outside, with good sanitation and ultraviolet radiation resistance, strike proof, strong shock resistance, not easy to aging, not growing alga, easy to wash, mouse and termites prevention, convenient to install and move and drainage completely.