SELF-WATERING PRINCIPLE: Through two absorbent cotton ropes, the self watering pots provide water to the soil and keep the soil moist through the principle of osmosis, without having to water the plants regularly. Even if you leave home for a few days, it can help you take care of the plants and avoid plants die from water shortage.WATER LEVEL MONITORING: There is a visible water level window on the bottom of the rectangle planter box, which can observe the water level at any time to prevent water shortage. Note: To ensure the healthy growth of plants, the water level should not exceed the visible water level window.WATER INJECTION PORT: The indoor herb garden pots adopt a double-layer split design, and each herb planter is equipped with a water injection port on the top, which can directly add water without taking out the plants, which is very convenient and saves time and effort.PREMIUM MATERIAL: These self watering pots for indoor plants are made of high-quality plastic, which is light and durable. Each size is: 10.5 x 4.5 x 5.5 (L x W x H), The stylish and simple multi-color design (coffee, orange, and green) is a beautiful view of the garden balcony.MULTI-PURPOSE: Our windowsill planter is very suitable for planting herbs, organic vegetables, succulents or flowers in gardens, balconies, kitchens or offices and other indoor and outdoor places, bringing a green, fresh and vibrant atmosphere.