Feature:1. Watch mainspring winder tools including 20 different model, suitable for most watch mainspring of the market.2. High precise watch mainspring winder design, suitable for professional watch repairing workers to use.3. About 20.5cm / 8.1in of the length, 13.8cm / 5.4in width and 6cm / 2.4in height of the box, perfectly fitment for watch repairing.4. Copper material is corrosion resistant, strong durability, long service life, special designed for watch repairing.5. Wooden box makes the storage become more convenient, keep all the accessories well organized.Specification:Item Type: Watch Mainspring WinderMaterial: Copper, Composite WoodLength: Approx. 20.5cm / 8.1inWidth: Approx. 13.8cm / 5.4inHeight: Approx. 6cm / 2.4in(manual measurement, please allow a little error)Applicable Crowd: Applicable watch maintenance professionalsApplication Scenario: Suitable for different size and model of watch mainspring .Package List:1 x 8200 Mainspring Winder1 x 2235 Mainspring Winder1 x 7750 Mainspring Winder1 x 8500-1 Mainspring Winder1 x 8500-2 Mainspring Winder1 x 3135 Mainspring Winder1 x 2892 Mainspring Winder1 x 2000 Mainspring Winder1 x c07111 Mainspring Winder1 x 2671 Mainspring Winder1 x L888 Mainspring Winder1 x 1904-1 Mainspring Winder1 x 1904-2 Mainspring Winder1 x 1847 Mainspring Winder1 x 9015 Mainspring Winder1 x 2450 Mainspring Winder1 x 240 Mainspring Winder1 x 3120 Mainspring Winder1 x 899 Mainspring Winder1 x 2135 Mainspring Winder1 x Handle 1 x Wooden Box (Box Random)