A steel fence post, also called (depending ondesign or country) a T-post, starpicket, a Y-post, starpost, star dropper orwaratah, is a type of fence post or picket. Theyare made of steel and are sometimesmanufactured using durable rail steel. They can be used to support various types of wireor wire mesh. The end view of the post creates an obvious T, Y orother shape. The posts are driven into the ground with a manual orpneumatic postpounder