Fangrui Product Details Description: Simple And Convenient, Without Any Cumbersome Installation, Just Simply Screw A Spike Onto A Full Bottle Of Water, Then Insert The Pointed End Directly Into The Soil Near A Potted Plant's Stalk. You Don't Have To Worry About That Too Much Water Dripping Will Kill Your Plants, Because This Product Is Designed With Accurate Water Volume Switch, You Can Adjust Flow Rate According To Different Plants' Need. Made Of Plastic Material, It Is Durable And Light-weight. The Automatic Watering Spike Is Available In Many Styles. It Is Suitable For Garden, Park, Outdoors, Etc. Item Name: Automatic Watering Spikes Material: Plastic Features: Adjustable, Accurate, Time-saving Size Details: Size: 13.5cm X 3.5cm/5.31" X 1.38" (approx.) Inner Mouth Diameter: 2.75cm/1.08" (approx.) Notes: Duetothelightandscreensettingdifference,theitem'scolormaybeslightlydifferentfromthepictures. Pleaseallowslightdimensiondifferenceduetodifferentmanualmeasurement. Package Includes: 2 X Automatic Watering Spikes (others Not Included)