Palomar Wrestling black coffee mug from Just Heart. Available in two sizes. These are hand-wash only mugs.

Ceramic
11oz mug dimensions: height - 3.85" (9.8 cm), diameter - 3.35" (8.5 cm)
15oz mug dimensions: height - 4.7" (12 cm), diameter 3.35" (8.5 cm)
Glossy finish
NOT dishwasher or microwave safe
Hand-wash only