Super Sprouter 72 Cell Plug Tray - Square Holes 10 x 20

The tray is essentially as described, the plastic is thicker than cheap trays making it a bit more robust and likely to withstand more use/abuse before failing. The cells appear to be relatively uniform in thickness with firm bottom and sides.

It does fit into the Mondi 10x20 propagation tray, but it does not fit especially well due to the lip on the 72 cell tray.

Mondi tray referenced: http://growershouse.com/mondi-propagation-trays-10-x-20-no-holes