Product parameters: Vacuum cleaner bags in an 8-piece set, designed as replacement accessories for robot vacuum cleaners. Compatible with DREAME D20 Plus. Product dimensions are 18 x 12 x 6 cm, with a total weight of 242 g. The bags are made of melt-blown fiber and non-woven fabric. Batteries are not included, and batteries are not required. Core features: The bags have an advanced filtration structure of melt-blown fiber and non-woven fabric to capture fine dust particles during cleaning. The description states a fine particle capture performance of 99.97 percent in one section and 97 percent in another, indicating support for fine dust filtration. The construction is described as tear-resistant and intended for regular use. The sealed bag design helps keep absorbed dirt contained within the bag, supporting cleaner and more hygienic dust management. Installation and replacement are described as easy for simpler routine maintenance. Suitable scenarios: Suitable for users seeking replacement vacuum cleaner bags for a compatible robot vacuum cleaner and automatic emptying routine. The product is intended for household environments where dust collection, routine replacement, and dirt storage are important. The description also indicates compatibility with an automatic emptying station and mentions up to 40 days of use before the dustbin needs cleaning, depending on usage conditions. Product summary: This 8-piece replacement set of vacuum cleaner bags combines non-woven fabric and melt-blown filtration material with a tear-resistant structure and sealed dust storage design. Compatible with DREAME D20 Plus, it is intended to support routine maintenance of robot vacuum cleaners with convenient replacement and efficient fine dust collection.