The spring bar pins fit for 20 mm lug, please measure the gap between the lugs of the watch before purchasing. High Quality Stainless Steel. COMPATIBLE WITH ALL 20MM WATCH. Double shoulders/Flange at each end allow for quick and easy gripping for insertion and removal using a spring Removal bar tool which is included. Great for use with watch bands or other straps that have been designed for use with quick release spring bars. PACKAGE CONTENTS: 4 * 20mm quick release spring bar + 1 * remove tool. Watch Band Heavy Duty Spring Bar 4 Pack Stainless Steel Watch Band Pins, Diameter 20 mm incl Removal Tool Double shoulders/Flange at each end allow for quick and easy gripping for insertion and removal using a spring Removal bar tool which is included. To determine the right width, measure the width between watch lugs at the point where the band attaches. If you have any questions, please contact us by email in good time. We will reply you within 24 hours and hope to provide you with a pleasant shopping experience. Watch Band Heavy Duty Spring Bar 4 Pack Stainless Steel Watch Band Pins, Diameter 20 mm incl Removal Tool Double shoulders/Flange at each end allow for quick and easy gripping for insertion and removal using a spring Removal bar tool which is included. To determine the right width, measure the width between watch lugs at the point where the band attaches.