Apple Airtags seem to be in demand and rarely go on sale, unless you take advantage of a general platform promo like this Klarna x Kogan 4th instalment waived deal .
The market place seller is JW Computers. The model number MX542X/A looks like an Aust version, same model sold by local stores like Bing Lee, HN, Centrecom etc.
The title price take into account the 4th payment being waived by Klarna, and JW's postage of $9.95. I would pay the 2nd and 3rd instalments the same day to speed up the waiver, according to this comment .
Don't forget to stack with this deal 5,000 Bonus Flybuys Points Worth $25 if you have not claimed it.