questions about battery disconnect wiring

I just ordered this:
Cole Hersee 75907-BX Switch (Rot 2 Position Lever) | eBay
300 continuous, 2000 surge.
I canceled the eBay order. They didn’t get it in. From searching around, I think it is back ordered. This place had a bunch, if anyone else wants an overrated switch: Partdeal.com. Got it today.
Some places don’t reply when you ask if they actually have one, or are they just trying to get your order.