The Orbit(R) 1/2" Zinc Spike Base metal spike inserts easily into the ground and anchors sprinklers securely when watering. An economical and durable replacement spike for broken spikes on your existing sprinkler head, the unique flow-through construction allows multiple sprinklers to be connected together for a larger watering area. Works with 1/2" sprinkler heads. | Orbit 1/2" Zinc Spike Base