Suitable models: suitable for 11S RoboVac 30 robot vacuum cleaner. Vacuum cleaner accessories are of high quality. It is made of high-strength and environmentally friendly materials. Vacuum accessories are easy to remove dirt, dust and debris from corners and edges. Especially your hair and pet hair. The various parts of the product are very easy to install and remove It is recommended to replace commonly used parts in 2-3 months to that your vacuum cleaner is in the best condition note: Usually during transportation, the bristles of the side brush or main brush will bend. You can put them in hot water (about 85) for 5 minutes and then recycle them. It does not affect the quality and performance of items. note: If the main brush rotates and the side brush cannot rotate. You can check the main brush to confirm whether it can be rotated. If you can, please check the side brush to confirm whether there is something wrapped around. If so, please clean up these things. If the main brush and the side brush cannot rotate. If the main brush and side brush still cannot rotate, replace the main brush or the main brush container. Material:plastic color:as shown Package Contents: 1 x roller brush 10 x side brushes 6 x Haipa 1 x filter screen 1 x cover plate 1 x universal wheel 1 x small brush 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.