Hi LD You will need to use the airtite tube, the one with "Red Cap". ( Kook or Koala size tube will suit them)
The ones that held 1/4 oz. Scottsdale silver coins are great for keeping Aussie $2 coins in. I use them for parking meter change & have some for Supermarket change. The ones that held 1/10 oz. Scottsdale silver coins I fill up with Aussie 5c. coins which I use to buy stuff from Opp-Shops, or to just donate the contents to an Opp-Shop. p.s. The ones that held 1oz. silver coins, still hold 1oz. silver coins.