Description: You just need to drill a few holes in the bottom of the bottle or cut it out, it's easy to use. And this style watering device provides a different amount of water for different plants and flowers. It prevents excessive watering and insufficient watering. Flow rate control design, control valve plant watering device can control drip rate 0-60s / 1 drip, and slow release drip lasts 1-15 days. Made of high quality plastic material, it's odorless, harmless, environmentally friendly and durable. Length of the watering spike is 13.5cm, width is 3cm. The watering spike is applicable for bottles with an inner diameter of 1.1 inches. This style watering spike is perfect for your vegetables, indoor garden, potted plants, houseplants, herbs, patio plants, hanging baskets, desktop pots, hanging plants, small tree, shrubs. Item Name: Flower Watering Spike Material:PP(Polypropylene) Size:13.5cmx3cmx1.5cm/5.31inx1.18inx0.59in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 2 X Flower Watering Spikes