The Mechanical Clock Parts Key Winding Knob is a game-changer for your mechanical clock. Crafted with durability and reliability in mind, this accessory the longevity of your clock. The precision machining process ensures the accuracy and stability of your clock parts, providing a seamless timekeeping experience. Its unique design perfectly matches various mechanical clocks, enhancing their overall quality and elegance. With its easy installation and replacement, you can effortlessly maintain and personalize your mechanical clock. With a sufficient quantity of 4 pieces, you have enough to meet your mechanical clock needs and explore creative options. Features -Color:Silver -Material:Metal -Size:2.00X1.70X0.50cm/0.79X0.67X0.20in -A for mechanical clocks, this innovative accessory ensures the longevity and reliability of clocks, making them a worthwhile investment for any timepiece enthusiast. -Precision machining is the key to seamless timekeeping, and this mechanical clock accessory delivers just that. with its precise engineering, it ensures that your clock keeps accurate time for years to come. -In addition to its functional benefits, this accessory also enhances the elegance and quality of mechanical clocks. its sleek design and materials add a touch of sophistication to any timepiece. -Maintenance is made easy with this mechanical clock accessory. its simple design allows for easy upkeep, ensuring that your clock stays in top condition for years to come. -Finally, this accessory also offers creative options. with its versatile design, you can easily your clock to suit your personal style and preferences. Package list: 12 x winding keys