Features: Upgraded your lawn care with 16PCs adjustable sprinkler head featuring 0-360 degree customizable sprayed patterns and 70%+ water efficiency for uniform irrigation. Durability ABS construction ensures longevities while textured center rings enable precise adjustments from 0° to full coverage (17ft radius at 2.1 bar pressure). Designed for homeowners and gardening enthusiasts maintaining medium sized lawns, flowerbeds, or backyard landscape. Ideal for buried installation in residential yard to water irregular shape grassy area without overspray or dry spots. Each 4 inch garden irrigation nozzle in this 16 piece set delivers optimizes water distribution, reducing system wear while conserving resources through pressure responsive sprayed range control. Specifications: Product Type: 17A nozzle Size: Approx.2x2x2cm/0.78x0.78x0.78inch Color:Black Angles adjustable from 0°-360 degree Component:ABS Flows rate: 0.05-1.38m³/h Recommended working pressure: 1.5-3bar Package Includes: Pack of 16 Adjustable Rotating Sprinkler Nozzles note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.