This set includes a nice size mug and a small serving size tea pot. The set is a olive green color. It's made of high quality Stoneware. The set isn't just for brewing tea, it can also be used for soups, coffee and hot chocolate. If you like hot apple cider or hot buttered rum, then this set is perfect for you. The diameter of the set is 4 1/2" and it's 2 1/2" tall. Great for gifting.