General description Made of high-quality materials, this Main Roller Brush for Robot Vacuum features uniquely designed brushes with rubber treads that adapt to various floor surfaces, effectively removing everything from small dust to large deposits. It is recommended to replace spare parts every 2 to 3 months to maintain optimal performance. Technical specifications Material: Plastic Package Contents: 2 roller brushes Measurement allowed error: +/- 1-3 cm Usage As part of normal maintenance, the roller brush can be easily removed and replaced.