Material: High quality PP plastic, the outer pots surface is matte white. Package include 4 pieces garden pots,differe sizes for you to choose from,please check it before purchasing Aerification: breathable clear pots with holes are perfect for plants whose roots require sunlight and air. Holes in the plastic pot provide a plant with essential amount of air. Great for different kinds of Orchids. Air Column Design: In addition to drainage, bigger orchid pots have a raised center that prevent water stagnation. Stagnant water can lead to the death of plants. Drainage: it is essential to follow rules of proper planting. We designed our product according to the drainage standard. The small holes on the bottom have optimal size to prevent a potting mix from falling out of a container. Widely Used: Our Plant Pots are specifically designed for Orchidaceae, such as Orchid, Dendrobium, Cattleya. It also suitable for common plants. Please kindly note that it is suitable for growing small plants with shallow root system.