Hello Andy,

Our chart lists chips that measure 47mm and 49mm, but we're not aware of anything that's exactly 48.... what do you have?

Anyway, there are no 48mm holders in direct fit or ring type. If what you have actually measures 48mm I'd recommend that you go with an "Y47" ring type. The foam ring is flexible enough to accomodate a slightly larger sized chip or coin. And yes, we ship to Australia on a regular basis. We have several coin collectors there that buy from us regularly.

Thanks,
Marty Mitchell R-6970
Air-Tites.com, Inc.
www.air-tites.com