[Environmental Recycling ]Our potted plant watering stake is specially designed for long-necked bottles. Wine bottles are the . It is an eco-friendly way to recycle bottles. But the flask made of any other material should be compatible, as long as it fits the automatic plant waterer firmly and is not too heavy. For small pots, you can use smaller wine bottles or bottles. [Terracotta Watering Spikes]12 Pack plant watering devices, made from porous terracotta, can automatically seep water,these watering spikes deliver water directly to plant gradually, preventing over/under-watering & promoting healthier growth. [Easy to use]Soak the self watering stakes, for 1-2 hours before use to prevent the stake from absorbing water from the bottle quickly. Create a pilot hole and penetrate the spike into the soil deeply so the opening is flush with the soil. Fill the bottle with water, connect the bottle with stakes and turn upside down. Reminder: Do not push the plant watering pile too hard to avoid breaking. [Ideal for Travelers]These plant watering spikes for potted plants give you peace of mind while on vacation. A litre of water works for approximately 7-10 days depending on the types of plants drawing water, soil composition, humidity. For large pot,you can put one plant watering spike by each plant or use a large wine bottle. Tips: Please test the release speed of the plants waterer before traveling to protect the life of the plants. [Multi-Purpose Gardening Tool]The self watering spikes can self water your potted plants and help you save watering time.Make their gardening easier and their plants healthier. They are a great gift for any friend or family member who likes gardening., Manufacturer: Akfldms