Buying a pet identification tag for your Pumi is like purchasing an insurance policy – you do so with the devout wish that you’re never going to need it. The “possible cost” of not having a pet ID tag is more expensive than the “actual price” of buying the pet tag itself.
The type of pet ID tag that you buy is crucial, so take five minutes or so to think it through. Whimsically picking a collar tag because it’s inexpensive or pretty usually proves to be a regret, long-term.