Made of high quality material, Can be easily removed and replaced as part of normal maintenance. Easy to install and reliable to use The filter traps dust and allergy particles during cleaning, perfect for asthmatics, allergy sufferers, or pet households. It is recommended that you replace it every 2-3 months or thereafter to maintain the performance of the machine. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! material: plastic Colour:Photo Color Package Contents: 2x roller brushes 4x Strainers 4x wipes 4x side brushes 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.