General description Replacement Roller Brush Side Brushes HEPA Filters for Roborock S7 T7 T7S Robot Vacuum Cleaner Accessories are brand new, high quality, and designed to enhance the performance of your vacuum cleaner. Made from durable materials, these accessories are practical and effective in maintaining cleanliness. Technical specifications Color: As shown Material: Plastic Package Contents: 4 x White Pentagonal Edge Brush 4 x Filter 6 x Cleaning Cloth 1 x Screwdriver 1 x Cleaning Brush Measurement allowed error: +/- 1-3 cm Installation Simple installation process Can be easily removed and replaced Usage Recommended to replace every 2-3 months or according to usage for optimal performance