4 ms·

You can find the small tubes at hobby stores, with the supplies for Pinewood Derby cars for Cub Scouts. I went through several tubes during my son's years in S

You can find the small tubes at hobby stores, with the supplies for Pinewood Derby cars for Cub Scouts. I went through several tubes during my son's years in Scouts.

avhon1 6y ago
You can also get it at hardware stores for lubricating locks.
- EricE 6y ago
  The versions for lubricating motorcycle cables are finer and less messy than the cheap stuff they sell for locks. If you want to be neater with your slide rule, anyway :)