The 1st owner of my 08 installed handlebar risers (I'm the 2nd owner - bought in 2010). I don't know anything about them but just recently noticed that the cap has fallen out of the right side. I did not notice losing it. Does anybody have an idea of what kind of risers these are so I can contact the maker for a replacement?

Left side with cap in place.

Right side where the cap is missing.
Thanks for any assistance in advance!
Left side with cap in place.
Right side where the cap is missing.
Thanks for any assistance in advance!
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