Chicken Hawk Pole Position 3-Temp Tire Warmers. Asking $325 shipped Older style Pole Position without side skirts. Superbike size (180-205) Comes with carrying case. There is some slight discoloration as shown in pics but no burn throughs, no hot/cold spots, and the warmers heat up quickly every time.
I don't have an exact date for them. I've used them for 2 years without issue. Judging by them having the classic style sides I'd say they're 5-6 years old.