drip line is poly tubing
http://www.dripirrigation.com/drip_irrigation_info.php?products_id=263
it doesn't have holes in it until you poke them in to set little connectors in for tubes which carry small amounts of water to each plant.
I laid it in the stream so it would carry water by gravity feed down
to the plants below which have survived the fire, but my water system
was burned up so i am trying to keep the lilies, tomatoes, and herbs alive.