LINKSOLAR Net Pots Hydroponic System Growing Kit/Plastic Slotted Mesh Net Pot Root Controlling Flowerpots,1 Dozen (100A: inner diameter 4") These baskets work with any kind of media -- hydroponics or soil-based.Height:4.5" Excellent Drainage,provides maximum drainage to encourage healthy root development. Good Air Movement,when a plant becomes too big for a solid pot, the roots begin to circle and choke each other. More airflow to the root zone prunes the root structure and prevents circling Durable, UV-resistant/heat-resistant(120-20) plastic,anti-corrision Materials are ROHS approved can be in contact with food.Need what color please note when buying