Freezer shelf and icemaker door out of a Kitchenaid side-by-side refrigerator.
Used but in great shape. 
Door pins and shelf door brackets all intact and working.

Looks bluish in some photos, but it is white plastic.

Shelf is 13-3/4"wide, 12" deep
Door is 13-3/" wide, 5-3/8" tall

White plastic