Senniger xcel energy wobbler sprinkler ×18. Amazing efficient wobbling sprinkler heads enough to easily fully cover 1/2 acre of farmland. Most water efficent overhead irrigation option. Simulates similar pattern as rain. Great condition lightly used for 2 summer seasons on my farm. Stored indoors in the winter. Must buy all of them. Selling as im moving away and selling off my farm equipment. This is them and where ordered them from. Then made risers myself . Will just need poly or hosing to connect them all in series. https://duboisag.com/ca_en/1-2-xcel-wobbler-sprinkler-with-nozzle.html