Thread: is this 3 or 4 core rubber
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Old 05-28-2014, 05:05 PM   #6
72bowtiestepper
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Join Date: Feb 2013
Location: Northwest NJ
Posts: 684
Re: is this 3 or 4 core rubber
The ones in your pic are 4 core......3 core measure 3 1/4" long.
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