WA Second Skin Damplifier, 6 square feet

[ETsC10]

This is the older, silver foil damplifier.

Each sheet is 12”x24”. To save on shipping costs (huge),
I would be cutting these in thirds and shipping in a USPS Priority
Flat rate envelope.
When I went to shop for a vibration dampener, I spent a couple
days researching and found that the Second Skin product won hands
down, compared to the competition, in stability and performance.
It was not the cheapest but showed the best long term value.

Second skin says the sheets weigh a third of a pound but, when
it was shipped to me, the 20 sheet box weighed 32#.

$20 for 6 square feet (3 uncut sheets worth)
includes priority shipping.

Please respond in thread only.