Hummingbird Windchimes hand made with porcelain clay. These are all made by hand and kiln fired. After the raw clay was fired, a coat of glaze was added and fired again. These were fired to 2200 degrees on both firings. The Windchimes can be hung either indoor or outdoors. Each one is constructed using a nylon thread and can hold up outside. They are different in length but still hang beautifully. This is a perfect gift for the person who loves birds and windchimes. They do not make a chiming sound but they look like they are flying in the breeze.