YINETTECH 20Pcs Watch Stem Extenders 0.9mm Extension Bar Spring Winding Extender Crown Repair Accessory, Silver,

Functionality: This watch crown stem extender features 0.9mm internal and external threads, measuring a total length of 11mm. Repair Made Easy: Designed for watch cases where the stem is too short to install the crown, this extender allows you to effectively repair or enhance the functionality of your timepiece. Material: Crafted from high-hardness metal, this extender is resistant to fading, wear, and rust, ensuring longevity and reliability for prolonged use. Portable Design: Compact and lightweight, this extender is easy to store and carry, making it a convenient addition to any watch repair kit without taking up much space. Practical Accessory: A simple yet essential accessory for DIY enthusiasts and watchmakers, providing a straightforward solution for watch repairs.