The Wind Cap from Missouri Meerschaum is great for getting the optimum performance from your pipe on a windy day. All you need to do is compress the two tabs on each side to form a pressure fit on the inside of the tobacco chamber. This sturdy tool is a perfect complement to windy days, on a hike, or when you're relegated to the front porch to enjoy your pipe. Wind Cap will not fit the Miniature or Freehand corn cob pipes.