The net cups made of non-toxic, UV-resistant plastic, which is durable and high hardness. The many holes on the bottom of these cups promote healthy roots with even drainage. Letting the roots grow their own way, right down through the pot and out of the sides, allow for bigger, healthier roots. Easier to clean, UV-Resistant. Our plant nursery pots will last from season to season. Perfect for aquaponic and hydroponic garden of orchids, tomato's, peppers and herbs, etc. Size: 6-inch (Diameter) pack of 24