My product is Bourbon Baggers. It is $3\mathrm{.}5$ grams of finely shredded and charred oak.

For advertising reasons, I want to compare the surface area per $50$ ml of bourbon for these three things.

$1.$ Bourbon baggers. $3\mathrm{.}5$g of fine shreds of oak with individual pieces ranging from $7$mm x $1$mm x $2$mm at the large end to $0\mathrm{.}2$mmX$0\mathrm{.}2$mmX$0\mathrm{.}2$mm$.$ You will need to determine how many pieces, estimate a size distribution based on a picture, etc.

$2.$ Bourbon spirals. Shown in attached picture. $2\mathrm{.}5$ in long with weight of $0\mathrm{.}16$ ounce

$3.$ A standard $200$L bourbon barrel interior surface area. Barrel dimensions can be looked up online.