General description These high-quality vacuum cleaner bags are designed to fit 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 Other information Color: As shown Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.