The Aifa Metal Sprinkler With T-Spike is a great choice for domestic gardening and irrigation needs. It covers a large area of 26 meters in diameter and is a djustable from 30 degrees to 360 degrees.The Aifa Metal Sprinkler With T-Spike is a great choice for domestic gardening and irrigation needs. It covers a large area of 26 meters in diameter and is a djustable from 30 degrees to 360 degrees.