These packets are the 500 cc size, and we pack them using our vacuum sealing machine using the MVP Marvelseal pouches (or you can buy the manufacturer's bulk prepack). We pack the sizes for you in 2's, 3's & 5's, for a quantity of 1000, 1500, and 2500cc respectively. Recommended for all airtight time capsules.
* For volume, 864 cu. in. is equivalent to 14158.4 ml [To convert - https://www.google.com/search?q=inches+to+mm]**NOTE: one milliliter (ml) = one cubic centimeter (cc)