6PCS Vacuum Cleaner Dust Bags Non Woven Fabric Dust Bag Replacement Parts for Proscenic S3 for Ultenic FS1 Robot Vacuum Cleaner Accessories 1Applicable Models: This dust bag replacement set is designed to fit for Proscenic S3, for Ultenic FS1 robot vacuum cleaners, which can be perfectly fit with your machine. 2Non Woven Fabric Material: The dust bags are made of premium non woven fabric and meltblown fabric, durable with high strength to ensure leakage proof performance and a healthy life. 3Great Performance: The dust bag is designed to effectively collect small particles such as dirt, cat and dog hair, and other debris commonly found in workshops, garages, and basements. 4Easy Installation: The vacuum cleaner dust bags are easy to install, simply remove the existing dust bag and replace it with the new one. No additional tools or skills are required. 5Great Accessories: The dust bags are the perfect accessory for your robot vacuum cleaner, offering a perfect replacement for the original dust bags and enhancing the overall performance.