Usage: Rotate the green cover on the top of the dripper to adjust the outlet and flow status. Rotate left to close, rotate right to adjust the drip rate. The dripper can be removed and cleaned.Size and material: The adjustable irrigation drippers are suitable for 4mm or 7mm drip tubes. Each dripper is approximately 13.5 cm (5.3 inches) tall. Made of durable plastic material for long service life and resistance to breakage.Adjustable dripper with 8 holes: The top of the dripper features 8 outlets that allow flow adjustment to meet the needs of different plants. Provides 360-degree coverage for even water distribution.Multiple uses: The bottom of the dripper is designed for easy insertion into tubing. Suitable for garden plants, potted plants, landscaping, flower beds, vegetable gardens, herb gardens, greenhouses, orchards, lawns, and other plants.Quantity: Each package includes a sufficient number of adjustable irrigation drippers to meet your needs. Ideal for creating a small-scale irrigation system in your garden to water your plants efficiently.