Curved foliating metal sheets are flexible vapor deposited sheets.

The gold color also has a metallic feel like a mirror, and it has been subjected to curved surfaces.
Highly effective for representation of metal that was not possible with paint.
The sheets are "ultra thin" and "stretch" so they adhere to curved surfaces and have a "golden shiny mirror" finish.

Usage
Universal dress up for car model rims and emblems.
Gold mirror finish for character model sculptures and figure holding accessories
Use the "Gold Mirror" to make a statement that was not possible with decals or paint such as special marking on airplane models.

(From Amazon.co.jp)