Tech Swiss TSMET194 Watch Band Expansion Stretch Metal Gold-tone 16-20mm Watch Band Expansion Metal Stretch Gold-tone Plated to Fit Case with Straight Ends Band Offers Links with Polish Gold-Tone Finish- Band Can Be Adjusted Replacement Strap Fits Most Cases with Curved Case Openings 16mm up to 20mm Expansion Watch Band can Update a Watch or Replace a Band without Spending alot of Money Watch Band Length: 6" without Stretch Band Thickness: 4mm