1. Product compatibility: Compatible with for NV70, NV71, NV80, NVC80C, NV90, NV95, UV420 Replacement Parts 2. This product is only compatible with for NV70,80,90,series, Not compatible with for NV350 and NV360 series,NV500 and NV520 series, NV650 and NV680 series, NV750 and NV752 series, please confirm the model before purchasing 3. Made of high-quality materials,the new roller brush can effectively suck the debris on and the dust in the space into the dust box, and the filter can filter the dust well and prevent the dust from entering the air, so that looks good. 4. It is easy to disassemble and install,and it needs to be removed with a screwdriver tool during installation.There are two hidden screws under the small wheels.You need to remove the wheel to see the screws. The disassembly process may take a few minutes.A short wait brings you new carpet tools. 5. Easy to clean, Help to remove dirt, dust and trash on the floor. Compatible Devices: Compatible with For NV70, NV71, NV80, NVC80C, NV90, NV95, UV420 Colour:Brown & White Material:Plastic+cotton Package Contents: 2 * Filter 4 * Cotton 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.