Ultra Oxy Pot 3.5 Gallon Super Air-Pruning Planter (Single) Premium air-pruning planter/container for soil or soilless medium Unique design stimulates robust root zone development for healthier plants, faster growth, and bigger yields Durable recycled HDPE construction, can be used over and over Primes plants for effortless transplanting and reduces the risk of transplant shock Pot dimensions (max): 13" diameter x 8" high ; minor assembly required