ITEM NAME:360 pcs 8-25 mm stainless steel watches Spring Bars + pins Watchband bar Sp B8M5 360 pcs 8-25 mm stainless steel watches Spring Bars + pins Watchband bar Sp B8M5 360 Watches Spring Bars Material: Stainless steel Diameter: 1.5mm Size: 8-25mm Quantity: 360 Product Details: Spring Bars for wristwatches: Simple execution. Good elasticity Professional watchmakers need Size: (8-25mm) 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm , 21mm, 22mm, 23mm, 24mm, 25mm (20 pcs each ground) color: silver weight: 67g watchmaker stuff spring bars pins watch strap beam web: a tip is a v-edge flat tip, the other has a split tip For spring bars and bracelet the top of each head is replaceable Package Included: 360 pcs x 8-25mm spring bars 1pc x pins Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.