2 Inch Net Pot (10 Pack) and Clay Pebbles (2 Pounds) Combo Ten 2" high by 2" wide mesh net pots, plus two pounds of clay pebbles. This combination is perfect for new orchid seedlings or for hydroponic applications. The pot is made of durable, UV-resistant plastic, with numerous but narrow slits that properly contain appropriate-sized grow media. Made of 100% natural clay. The pebbles are of uniform, round shape, and is inert, pH-neutral, clean and decorative. For orchids, this provides optimal drainage and moisture retention while providing an excellent media for root growth. In hydroponics, it ensures good root aeration and prevents rotting, excess acidity and soil pests.