Electrodes within tolerances. I've measured them all and got results in the range of 2.35mm to 2.38mm in diameter, which seems to me to be an acceptable tolerance. They also vary in length within these ranges. I measured the length with calipers and the longest seemed to be less than 6.87 inches and the shortest was 6.85 inches. The color marking is actually purple as it should be, albeit more of a purplish grey.
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