Feature: 1. Multifuntional: It can be applied to watch movement splint, special designed for rust stains removal and cleaning to help restore their original lustre and beauty, ensure performance of your watch. 2. Effective: Watch repair tool descaling solution, just use a dropper to suck a small amount of solution drops in the brush, brush the splint to clean finish, immediately rinse with water or distilled water, and then cleaned, drying with drying machine. 3. Easy to Use: Safe to use on metal surfaces. Use a bristle brush, sponge or rag and apply the solution directly to the metal. You can also immerse the entire item in the solution and always use the product in a plastic or glass container. 4. Controllable Strength: The metal is immersed in the solution, and the addition of the right amount of water effectively dilutes the concentration of the descaling solution, thus slowing down the chemical response and making the care process more controllable, reducing the potential for damage and mishandling. 5. Long Lasting: De rusting solution has an indefinite shelf life when stored properly at room temperature in a tightly sealed container in order to ensure the function of the rust removal liquid. Specification: Item Type: Watch Splint Rust Remover Liquid Material: Glass, rust remover liquid . Package List: 1 x Watch Splint Rust Remover Liquid Note: This product can only be applied to clean the watch movement splint, can not clean the gear, can not soak watch splint for a long time.