Does anyone know..

Here's a weird question. On every new Innova disc I buy, I notice there's a little blank white rectangular paper sticker on the edge of the underside of the rim. I can't imagine Innova putting them on every disc without some sort of purpose. Does anyone have any idea why the little blank white sticker is there?

[one19]

.

Back in day, it was blotter that came on San Marcos Frisbees.

Nowadays, it's designed as a panty shield for whiners.

My, how times change.

.