This is a Peanuts ceramic mug from Just For You.
It is white in color and features the words "Santa's Little Helper Woodstock" and Woodstock in a red and green stocking cap flying over the head of Snoopy, who is dressed in a Santa suit and ice skates.
The item was made in China and measures about 4" tall, 5" wide including the handle and 3.25" in diameter.
It is microwave/dishwasher safe.
This mug is in very good pre-owned condition.