This mug is an official

Nintendo Super Mario Bros.ceramic coffee mug, often sold as part of gift sets or seasonal items. The design features a jumping Mario on a red background with a white polka-dot pattern. 

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Product Details

• Capacity: Typically found in 12 oz or 15 oz sizes.

• Material: Ceramic.

• Variations: Similar designs have been released by various manufacturers, including Pyramid International and Frankford Candy (often as part of a hot cocoa bomb set).

• Features: Many versions are noted to be dishwasher and microwave safe, though users should check the bottom of their specific mug for care instructions