This is exactly what I was looking for to light my marque on my arcade cabinet.
The board is rigid and consists of 10 strips of lights (they can be broken into separate strips). Each strip is 6 mm wide by 500 mm long; there is a 2 mm gap between strips for a total width of 78 mm; there is 5 mm on each end of the strip for a total length of 510 mm. Each strip consists of ten (10) 50 mm breakable segments, each with 3 leds (16 2/3 mm pitch); so 30 leds per strip; 300 leds per board. The individual 3 LED segments are each labeled NC LED E347462. The board is marked on one end with 3CUT_BAR500-12V and the other end with NC LED E117655.
It was packaged and padded very well in a rigid tube. Arrived unbroken.