It was removed when new and replaced with SRAM cranks as that is what I prefer. It is therefore a new item as described and the pictures speak for themselves.
4iiii Precision 2 Ultegra single sided Power Meter 172.5mm
Ultegra R8000 4iiii Dual Sided Power Meter - 52/36 - 172.5
4iii Ultegra R8100 Precision 3+ Pro Dual-Sided Crankset Powermeter 170mm 52/36T
Ultegra 12 Speed Crankset With 4iiii Precision 3+ Left Crank
4iiii Precision Power Meter Ultegra R8100 - 172.5mm
4iiii Precision Power Meter for Shimano 105 FC-R7000 170mm Left Crank Arm 170mm