IDEAL FOR TRAVELERS: Dependable technology and reliable solution; Your plants will take care of themselves while you are on vacation or otherwise busy; waters your plants only as needed VERSATILE HOUSEPLANT TOOL: Use these in any potted plant or flower in your house, office, or even balcony; While being both effective and reliable, these are also versatile for watering all types of indoor or outdoor plants; Can be used all year-round,rain or shine, and are adaptable for outdoor or indoor use HAPPY HEALTHY PLANTS: No more overwatering or underwatering houseplants; Automatically supply the right amount of water to each plant; not only will your plants survive, they will thrive EASY TO USE: Put your bottle upside down on the Plant Self Watering Planter Insert Spikes Stakes, then make a few small holes in the bottom of the bottle to ensure air circulation, you can control the amount of water flow by turning the switch