Usually $49 ea if bought individually, for non- education users.
Part of their Samsung Smash sale, lots of other things on sale.
Plenty of criticisms of these online, but I've been delighted with mine. Nice to sit in the airport lounge and see that your suitcase is apparently somewhere in the plane out the window (well if it is the right plane!). Nice to get the tracker to beep if you lose keys around the house. Peace of mind to have them concealed in my food caravan and e-bike. The silicone cases (which are very good) have a small reduction as well. (If collecting, insert your card rather than paying the excessive 41c paywave surcharge).
Link is to the image not the page