100 New Watch Band Spring Bars 8-19mm. This is a new assortment of 100 spring bars. The lid is marked with sizes 8-19mm. You receive: 8 spring bars measuring approximately 8mm 8 spring bars measuring approximately 9mm 8 spring bars measuring approximately 10mm 10 spring bars measuring approximately 11mm 10 spring bars measuring approximately 12mm 8 spring bars measuring approximately 13mm 8 spring bars measuring approximately 14mm 8 spring bars measuring approximately 15mm 10 spring bars measuring approximately 16mm 8 spring bars measuring approximately 17mm 8 spring bars measuring approximately 18mm 8 spring bars measuring approximately 19mm.