Unique Self-Watering Structure: Self-watering planter constructed with a mesh drainage holes body, removable storage pot base and absorbent cotton cord, this self-watering planter is specially designed to minimize rot roots while keeping the soil well hydrated (pack of 5). (different sizes) Impressive drainage: Plant pots built with plants in mind with a decent opening for air circulation to rise into the roots. What a difference your plants can finally breathe. These provide all the essentials for plant care. Bottom watering: The watering "lips" are detachable and simply clip into the rim. Bottom watering is best for plants because it develops stronger roots, prevents overwatering and root rot, and discourages pests and mold that you often get with wet soil. Best choice for busy people: The water storage system can provide enough water for your beloved plants without daily watering, the soil stays moist for 7 days, perfect for busy people. And the pretty plain finish looks stylish and goes well with other plant pots. Note: The bottom piece of the water tank is supposed to twist to lock, it takes a little time to master the skills, if the position of the card is not accurate, it will fall easily. Please try several times.