What is this red rubbery DC motor part?

Looking at the 1/16" x 1/4" red rubbery extrusion from the non-functional end of a DC motor. It looks like heat shrink tubing over a much shorter extrusion, but it's very flexible and I don't see any opening on the end of it.

What is it for? Should I be concerned about damaging it?

Thank you.

Reply to
John Doe
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Sorry, forgot to include the pictures:

Newsgroups: alt.binaries.friends Subject: What is this red rubbery DC motor part?

Reply to
John Doe

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