General description These high-quality microfiber vacuum cleaner bags are designed for compatibility with various models, including KFI 357, KFI 357 KA 40, WD2 Plus, WD3, WD3s, SE4001, and SE4002. Made from durable non-woven fabric, these bags feature four filter layers that enhance dust absorption and filtration efficiency, reducing the frequency of replacements compared to traditional paper bags. Technical specifications Material: Non-woven fabric + Plastic Package Contents: 5 dust bags, 1 filter Allowed measurement error: +/- 1-3 cm