Kunyida Unique Burgundy and Ivory White Knit Christmas Stockings Length 14",Pack 4 Off-white unknown

What is the inside like? Does stuff get caught in threads or does it have a lining?

Is the 18” stockings roomy? Can hold several things?

Can these be dyed?

Does the "pack 4,18" unique ivory white knit christmas stockings" contain 2 or 4 stockings? the description below the title suggests that there are 2.