Small normal and Large normal option stickers have the adhesive on the back of the sticker. This makes it easy to apply your stickers in most places, indoors or outdoors. With a clear background behind your design, these stickers also look great on opaque surfaces. 

Small reversible and Large reversible option stickers have the adhesive on the front of the sticker. This reversal effect ensures your stickers will look great when they are applied on the inside of a transparent surface.