Features: 1. High-quality ventilation filter: using electrostatic non-woven polyester fabric. Special electrostatic filtration captures small particles and reduces dust in your home. They also avoid unwanted items from entering your home. 2. Each package comes with 200cm x 100cm filter cotton and 300cm double-sided non-marking mounting tape. It can cover more than 36 standard exhaust ports. Covers non-standard larger size exhaust ports inexpensively. 3. Flexible DIY Design: Compatible with all sizes of vents, vents and grills. Cut to fit any size vent. 4. Easy to use: Just stick the mounting strip on the outside of the vent and stick tape on. Easily replace dirty filters without removing the vents. Easy to apply and replace without restricting air flow. 5. This versatile design makes it easy to cover or install behind non-standard vent sizes and use in DIY projects. Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: polyester Size: 200*100cm Packing list: 1 x filter cotton, 1 roll x non-marking double-sided tape includes: 1 set x Air Vent Filters Kit