Osmo Words is available for purchase worldwide on our website and through retailers as part of our kits:
Osmo Words Sets are not available for sale separately at this time; however, replacement tile sets for Words are available.
Osmo sells these uppercase/lowercase tile sets exclusively on our website, and they are found on the shopping page at the very bottom, in the 'Add-ons & Replacements' section:
They are $19 USD, and do NOT ship in a stackable storage container.
The Words Kit (Osmo Base + Words) is only available at BestBuy, and at $49.99 USD, it's one of the cheapest ways to get started with Osmo: