Silver Wrap / Foldunder Cake Board

ENJAY Foldunders are 1/4" thick corrugated boards wrapped with embossed foil.
Highly grease resistant means no stains from icings, buttercreams, etc., and the wrapped edges keep unwanted moisture from getting inside.
They are meant for use of supporting and displaying cakes, pastries, and more.

This is a double wall cardboard covered with silver foil.