SDF-180BL 1000 Pieces Spring Bar Assortment Stainless 1.80mm Spring Bar Pin Assortment Double Flange for Watches- Pins Attach the Watch Band with Case Sizes range from 7 mm to 24 mm Stainless Steel Pins Assortment 1000 Pieces All pins in assortment are 1.8 mm thick - We offer Full Line of Spring Bar Assortment 18 Most Popular Sizes