Material: alloy,leather,beads,Size:About17-23cm(adjustable),Color:black ,Notice : ,1:As different computers display colors differently, the color of the actual item may vary slightly from the above images.,2:Attention: please allow 1-2 cm(0.4-0.7in) error of measurement., Note:same as picture but pls note the actual colors may slightly vary from the pictures due to the different monitor settings and light environment when photos were shot.