Features STACKABLE PLANTER - Stack the planters to the height you desire. EASY TO MOVE - Four all-directional wheels, easy for the senior. DRAINAGE SYSTEM - Multiple drainage holes at the bottom prevent overwatering. RIGHT SOIL MOISTURE - A small amount of water is kept under the soil holding board. BREATHABLE - Unique stacking design for airflow keeps the roots healthy. Product DescriptionVertical Planter 5 Tier Stackable Planters Garden Planters Strawberry Herb Flower and Vegetable Planter Indoor Outdoor Gardening Pots with Removable Wheels and Tools