Shield

The  is the tool or the Turtle Miraculous. It is unknown what kind of object it is.

Appearance
The tool is large and round, and it appears to be rather flat. One side of the tool is dark green, while another side of the tool is light green with indented lines going from the edge into the center of it. When not in use, the tool can be carried on the Turtle Miraculous holder's back, as seen in concept art with Carapace.

Trivia

 * The Turtle Miraculous object was first revealed when concept art of Carapace carrying the tool on its back was shown in a teaser video on August 31, 2017.