This elevated planting box for horticulture is strong and sturdy enough for various planting. The rectangle shape with legs supported and battens below, each planting box is capable of 220lb.To provide the plants with a great growing environment, each planting box has 5 vents so that the air and water can go in & out for better internal circulation. The surface is finely polished, smooth to the touch, without splinters and wood chips. The 2 tiers of the planter are ample enough for planting growth.It is suitable for many places, including the garden, backyard, and greenhouse.