1. Suitable for Dyson vacuum cleaner soft roller head accessories 2. Easy to install and disassemble, highly matched with the equipment 3. It is recommended to replace the spare parts every 2 to 3 months, depending on the frequency of use, in order to maintain the best performance of the machine 4. Dimensions: - Brush bar: 24 x 6cm - Thin brush rod: 23.5 x 2.2cm - 20W/30W motor: 16.5 x 3.5cm 5. Weight: -Brush bar: 145g -Thin brush holder: 34g -20W/30W motor: 214g -Motor bearing: 17g