Continuing with my Micropolis builds which include unusual non-System pieces, I needed to contruct some interesting glass panels to complement the featured element in my latest build. But what is the mystery piece? It’s a Znap Grid 9 x 7, 15 Holes, part 32213, which comes from the short-lived Znap line released by LEGO in 1998 and 1999, totalling just 21 elements. It was a bit like Technic, and thankfully the pin holes are 100% compatible with Tehcnic Pins.