The title and also this brief video (at the advertisement internet site web link) claims it all:.
http://www.todayshomeowner.com/video/sprinklers/.
I have two (2) readily available. They are new and also still in the boxes. Mfg 'd by Naan, design 525-007 known as the "undercover irrigator".
Asking $15 each or 2 for $25.