Durable Plastic Construction: Made from 4mm thick, sturdy plastic with a granite texture for a modern look. Multiple Drainage Holes: Circumference-wise drainage holes allow excess water to drain away. Versatile Size: Available in 10/9/8 inch sizes to accommodate most medium to large indoor plants. Easy to Use: No assembly required, just place in a tray of water to set up. Lightweight and Moisture Retaining: Plastic planters retain moisture for nearly double the time of clay planters.