The ornamental design for a set of heat-shielding protective ear covers, as shown and described.
FIG. 1 is a perspective view of a set of heat-shielding protective ear covers showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a side view thereof;
FIG. 5 is an opposite side view thereof;
FIG. 6 is a bottom view thereof; and,
FIG. 7 is a top view thereof.
In FIG. 1, the broken lines showing of environmental structure for purposes of illustrating the set of heat-shielding protective ear covers in a condition of use. The broken lines and the structure they depict form no part of the claimed design.
The broken line showing of a person's head is included for the purpose of illustrating environmental structure and forms no part of the claimed design.