Wind Works Wind Bells have been part of our chime collection for over 30 years. Because they are crafted of Cor-TenŽ, a high-strength steel designed for outdoor applications, they are known as the "Guaranteed to Rust" wind bell line. Each is made with three different thicknesses of steel allowing them to sound three tones. When rung as a bell, each of the three sides has a distinctive tone. Part wind bell part wind chime, these bells are designed to ring gently in the wind, but can be shut off if you wish.