Feature:1. Aluminum alloy material manufacturing ensuring maximum durability.2. Including a total of 14 models watch mainspring winder to meet your needs.3. It is an important tool for watch manufacturers and watch repair shops4. A practical tool for watch maintenance personnel, jewelers or amateurs.5. Ergonomic handle is non‑slip, easy to grip and convenient to use.Specification:Condition: 100% Brand NewItem Type: Watch Mainspring WinderMaterial: Aluminum Alloy Model Number: C0711 / 8500-1 / 8500-2 / 3135 / 2235 / 7750 / 2892 / 8200 / 2671 / 2000 / 7120 / 2750 / 2836 / 2824 There are 14 models, among which 3135 and 2824 and 2892 and 2836 are the same size Package List:1 x Red Base 14 x Fixed Base rings 14 x Winder 14 x Hand RockerNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.