The Marathon x Bergeon Spring Bar Tool is a Swiss-made precision instrument utilized during strap changes and watch maintenance. An essential tool for watch enthusiasts, horology professionals, and anyone that wants to refresh their daily-wear with a new strap. Length: 148mm/5.5in Pin Tip Diameter: 0.8mm Tip Material: Blackened Hardened Steel (50-52 HRC) Handle Material: PVC Scale Quantity: 2 Scale Range: 0-50mm (0-2in)