The Optimum One Square planter is designed in four sizes and fits standard grow pots from 6" to 17". Optimum One Planters are lightweight with outstanding durability. These containers are painted with low VOC SCRATCHGUARD finishes. Like our other low fossil fuel products, Optimum One planters are designed with 30% lower fossil fuel content than normal fiberglass products. Optimum One is available in four shapes; Cylinders, Squares, Tall Squares, and Rectangles. Download our Colors and Finishes Chart to choose from over 30 colors and finishes. Not available in Burnished finishes.