Glenmorangie Scotch Whisky / Sandstone rocks /drawstring bag / Highlands stone

Description

My father loved his scotch and I found Glenmorangie's  advertising promo interesting. Probably an extra gift for purchasing a specific quantity of scotch at the duty free shop at US/Canada border.
Stones are likely sandstone from the Tarlogie Springs - Ross-shire, Scotland highlands. Location is where this scotch is barreled.
Both Sandstone and limestone filtering the rain water provide the hardwater, mineral rich qualities desirable for this scotch. From what I know these are most likely sandstone and not limestone.
Will ship by USPS 1st class mail.
Thanks for viewing! Have anything additional to add to this it would be appreciated!