... zinc alloy pop-up sprinklerApplication:Apply for garden, greening, fruit tree, stadium.Features:As soon as sprinkler stops working, ... sports, or pollard.Open valve when start irrigating, sprinkler will stretch out from ground automatically at high water ... itself.Cast iron skin, zinc alloy rocker arm sprinkler inside. High strength of spray, head of ... Metallic skin rocker arm zinc alloy pop-up sprinkler