10ml tube shields, set of 6

Description

You're purchasing a set of six 10ml tube shields, harvested from Hamilton Bell centrifuges. There are no cushions (or at the most, a teeny-tiny one) at the bottom of these.
I personally weigh each shield and bundle them in sets of similar weight. There is less than a half gram, at most, difference between them all. Hey, I'm a retired Biomed Tech and there's a pandemic going on: what else can I do with my time?
Some sets will be shiny, some will be dull. It's the equal weight among them that matters. There'll be some cosmetic flaws on the outside as well, but those don't compromise the integrity of the metal.
Cash payment for local pick-up, please. Always happy to bundle purchases as well, and will refund excess shipping fees charged by ebay (it's probably due to my faulty knowledge of listing items for sale).
After the ebay fees and my stripping/handling fees (these centrifuges don't strip themselves of parts, you know!) the remaining 75% of the proceeds
of this sale go to my favorite non-profit organization: my local chapter of Sweet Adelines International. I thank you, and the Chorus thanks you!