The Brass Impact Sprinkler Head on a Step-Spike is designed to be used either as a single sprinkler or connected in a series. The brass impact sprinkler head is completely adjustable to cover a diameter of up to 90 Ft. in a partial to full circle.Completely adjustable from full to part circle Ideal for large lawn areas Covers up to a 90 Ft. diameter Anti-backsplash arm Brass impact head gives years of smooth and steady water coverage Use as a single sprinkler or connect in a series