WHAT DOES WINDOW STICKERS MEAN?

I've purchased more than 1500 transfer stickers with my corporation name/symbol I sent out with my shipments. They may have rapid turnaround time, good customer provider not to mention genuinely good quality stickers!​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​â