1. Compatible models: Suitable for Dreame H20/H20 ULTRA/ H30/H30 ULTRA /H30 COMBO STATION vacuum cleaners 2. It can be easily removed and replaced as part of routine maintenance 3. It is recommended to replace it every 2-3 months or according to your usage 4. Material: Microfiber cloth 5. Dimensions: 263 x 50mm 6. Weight: about 175g