Hello thanks for looking : This is a for a lot of 9 LED Cluster panels. The photo shows them at each angle and the back.
They have two 20 pin connections at the back of each one and have a screw hole in the center for mounting. there are 16 clusters (4 x4) per panel.I think these are red only, but not sure as we have no way to test them.
Each panel is about 2 1/2 inches by 2 1/2 inches .
These were in a bin marked "replacement parts left over from old repair stock". they should work fine but sell as used and untested. They are cool for repair or for that electronics tinkerer you know.
We sell the items as we find them and leave the cleaning to those that know how to do so properly.