Features:Material: AlloyCircumference: Approx. 16.5cm (Extension chain not included)Chain width: Approx.14mmThickness: Approx. 8.5mmHole diameter: Approx. 6mmSuit for snap button head: Approx. 5.5mmColor: SilverSnap button head not includedWill fit for Noosa， Ginger， Drill， or any unbranded snapPackage includes:1 x Fishbone Chian Bracelet