Factory replacement belt for Wessel-Werk EBK290 and Eagle Power Brush from MD Manufacturing.
This belt is cogged and measures 7/32" wide and 4 inches wide flattened out.
Here is a hint:
Buy two and store the second belt in the bottom of your
vacuum for future needs! When the belt breaks once again you will never
need to search for a new belt or wait for a replacement to be shipped
to you.