This listing is for a pack of micro irrigation tee connectors. Micro irrigation is designed to deliver water from your supply pipe directly to individual plants using 4/6mm micro pipes. If you need to split one line into two to water multiple plants or ensure even watering in a large pot with more than one dripper, these micro tees are essential. To use, simply cut your micro pipe and insert the tee connector into the cut ends. If the fit is tight, warm the pipe in hot water to make insertion easier. These tees are UV resistant, ensuring they won't degrade in sunlight and will last for many years. Additionally, they are reusable, allowing you to adjust your system as needed.