(Brown Mallee Burl pictured above) This is a Three pack, one of each size. Made from a beautiful Burl, this sweet little 2", 3", and 4", DynaVap stem is a perfect stem to use either direct as a mouthpiece or in a 14mm water piece. This style matches my particular tastes, it does NOT have an air hole. Each one will vary slightly, yet this style pictured above will be maintained. All wood, no metal tube inside.