[#1100, #1101 (special)]
This cut can be from any part of the beast except the shanks. It is mechanically tenderized by a special machine that dices the meat small from both sides but does not cut it all the way through. The cut must remain intact when suspended form a point 1/2 inch in from the edge.
For #1100, two pieces may be knitted together or a single thin piece can be folded before tenderizing. For #1101 (Beef Cubed Steak Special), only meat from the round, rib and chuck can be used. Knitting pieces together and folding are forbidden.
The photo specimen was 5 inches long, 4 inches across and 0.4 inch thick. weighing 1/4 pound, 2013 US $3.99 / pound.
More on Cuts of Beef.