These are DIE-CUT decals meaning there is no background to them. If there is a background color in the picture it is used only as an example. The background color will be the color of the surface you apply this decal to, or clear if you apply to a window. These decals come in 3 Pieces:
1. Top layer is transparent layer called transfer tape.
(This keeps your decal/sticker together until it is applied)
2. Middle layer is your actual decal.
(This is basically sandwiched between your transfer tape and Plastic backing)
3. Bottom layer is the plastic backing.
(protects the adhesive until the decal is ready to be applied)