ムーミン ニョロニョロ マグカップ

The product you mentioned, "4979855403440 MOOMIN ムーミン ニョロニョロ マグカップ," appears to refer to a Moomin-themed mug featuring the character Nyoron (ニョロニョロ). Moomin is a beloved Finnish comic and children's book series created by Tove Jansson, featuring various whimsical characters, including the Nyoron, which is a playful, worm-like creature.
If you're interested in purchasing this mug, it would typically be available at specialty stores that sell Moomin merchandise, online marketplaces, or official Moomin shops. Would you like more information about Moomin merchandise or specific details about this mug?