Our one-piece metal bell is made of high quality steel with copper finish. Tapered shape, 1-3/4" high, with bottom dimensions of 1-1/2" by 2". Bell fits a 3/4" wide neckstrap (our nylon doe collar). Putting bells on your goats will help you keep track of them, especially those grazing in brush; will also alert you to activity in goat yard. Also available by the box of 12.