These plastic planter boxes are made from fade-proof polypropylene fashioned into a pretty rattan pattern. Lightweight and easy to move once winter comes, you can easily bring them back inside to keep your tomatoes or other perennials out of the frost.Don't worry about water logging. Our raised plastic planter boxes have a hole on the bottom to stop soil from getting saturated. Pop in the plug to allow your plants to retain the rain. Pop out the plug to eliminate extra moisture for full control.