Articles in this category How to deal with quality problems of RSM products Dear customers RSM will provide customers with perfect service and shopping experience. 1. All RSM products are guaranteed for life (excluding lens cover) 2. Provide parts replacement or whole replace... Suggestions and tips for purchasing RSM products Suggestions and tips for purchasing RSM products What are the additional costs for purchasing RSM products? Many customers have such questions. Since this is a standard international shopping and expr... Return Policy Return Policy Because according to Chinese law. Scope is a legal export product, but importing it will cause trouble (because you can't own