ENJOY YOUR VACATION: - Enjoy the time with your family, your plants leave me. Use self watering spikes, you can go relax without having to worry about your plants. Our automatic watering system ideal for watering indoor flowers, outdoor plants or your vegetables during vacation ADJUSTABLE WATER FLOW: - Adjustable switch, precise flow control. These plant watering devices with regulating valve can control the drip speed 0-60s / 1 drip, slow release drops to self-watering stations, last 1-15 days or more, depending on the time you need. Exact amount of water, don't become a plant killer EASY TO USE: - Without tedious installation, just drill a small hole in the bottom of the bottle to allow gas to escape and tighten the drip irrigation watering devices, then a regulating valve to adjust the flow speed. Insert it into the soil, no nail needed and no danger COMPATIBLE BOTTLES: - The plant watering globes are compatible with bottles with an inner diameter of 1.1 inches. Fits most brand bottles: Dr.pepper, Pepsi, Coca-Cola, Lipton, Deet Coke, Aqufina or other bottles with a 1.1 inch inner diameter cap SELF-WATERING SPIKES: - Perfect watering device for your vegetables, indoor outdoor garden, daily water plants, potted plants, houseplants, herbs, patio plants, hanging baskets, desk pots, hanging plants, small trees, shrubs. It can save your time and energy without having to water every day, and saves you from the hassle of carrying heavy watering cans Number of pieces delivered: 10 Size: Length 15.5 cm