Material: Our filters are made of high-strength materials and ensure durability and longevity, so your vacuum cleaner provides long-lasting performance. Washable and reusable: the filter set can be washed depending on the frequency of use. Simply rinse it with clean water and dry it for reuse. Effective filtering: effectively prevents dandruff, dust and particles from entering the air, improves air quality and protects your health. We recommend replacing the filters every 3-6 months to maximize the life of your vacuum. Compatibility: These filters are compatible with for Shark Detect Pro IW3511, IW3120, IW1111 and IW1120 cordless handheld vacuum cleaners. Colour:As Shown Material:Plastic Package Contents: 2 * filter 1 * post filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.