Made of high quality material, more . The HEPA filter is made of high-strength environmentally friendly materials, which can block most dust down to 0.3 micrometers. As part of normal maintenance, it can be easily removed and replaced. It is recommended to replace the spare parts every 2 to 3 months depending on the frequency of use to keep the machine running at its best performance. The powerful cleaning function makes household cleaning more and less laborious. It is suitable for a variety of surfaces such as ceramic tiles, marble and wooden floors. Product Name: Roller Brush, Filter Compatible Models: for D3, for SPEEDFOX Nano NanoPro Product Weight: Roller Brush 185g/piece, Filter Screen 35g/piece Quantity: 6pcs Color: as shown Material: Plastic Size: Roller Brush 260 x 55 x 55mm, Filter Screen Production 72 x 68 x 56mm Package Contents: 3 * Hepa Filter 2 * Roller Brush 1 * Cleaning Brush Only the above package content, other products are not included. Note: Light reflection and