Features: 360 Degree Adjustable Wate Flow Irrigation Drippers. Each drip head has an adjustable cap that allows for simultaneous control of the flow rate and the wetting area. Every drip can be removed for cleaning. With a sharp-pointed stake, no other support is needed. Just insert it into the dirt after connecting to drip irrigation tubing. Not easy to leak, good sealing performance, long service life. Perfect for 1/4" drip irrigation tubing. Specification: Spray Mode: 8 Water Column Spray Radius: 0-50cm Interface: Plug and Play Material: PP Color: Black, medium green Length: Approx. 13.5cm / 5.3inch Package included: 50 x Drip Irrigation System Sprinkler Stakes Warm tips: 1. Please allow 1-5mm error due to manual measurement. 2. The product may cause some plastic smell in the long time's package. Pls open and hand where the air convection in 1-2 days. The plastic smell will go away normally.