I have some questions. I hope you don't find them stupid.

I'd like to buy aftermarket wipers. And since the OEM are NWB, I think I will buy that aftermarket brand.

1. How do I determine the size of the wipers I need? Where is that indicated on the wipers that I now have?

2. How do I buy a third wiper for the rear of an SUV (without having to buy it from the casa)? As far as I know kasi, eh, the wipers are sold in pairs.