Features: Ensure the longevity and precision of your watches with our O Ring Assortment Kits, designs to provide high efficiency waterproof sealing for various watch models. Use selected rubber, these o rings are organized into 12 compartments by size within a compact plastic box, making them easy to store and quick to access when needed. Great for watch repair professionals, handmade enthusiasts, and anyone need to replace or maintain waterproof seals on their timepieces. Perfect for daily watch maintenance, professional repair shops, and personal watch care, ensuring your watches remain in great condition. This multiuse kits is not only practical but also great for maintaining mechanical equipment, offering a perfect solution for all your sealing needs. Specifications: Product Dimension: As pictures shown Component: Rubber Package Includes: 1 Box Watch Gaskets Set note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.