This Witch Cauldron Halloween mug rug coaster set is hand crocheted and super fun. The outer cauldron holds four Halloween themed sparkly mug rugs to keep your surfaces safe from your witches brew. Be it coffee, tea, hot chocolate or eye of newt. These mug rugs will fit any size mug you are using. When they are inside the cauldron they look like fire and make a great accent piece for your spooky decor. These are make with acrylic yarn and can be machine washed and dried. They will be washed in a free and clear detergent before shipping due to the fact that I handle them to make them. Thank you so much for shopping and have a spooky day.