Tello SIM kits now at Amazon

Tello is now offering 4-SIM activation kits on Amazon, $7 with free Prime shipping.

The supply of the Sprint-labeled activation kits seems to have dried up, at least on Amazon.

My assumption is that this kit will have the same 4 SIMs as the Sprint 4-SIM kit for unlocked phones, and that they will be usable anywhere on the legacy Sprint network.