[COMPATIBLE MODEL]: Replacement roller brush for vacuum compatible with for LA400/VD550 (Please check the model number of your robot vacuum before purchasing, to avoid buying an unsuitable main brush). [STURDY AND ]: Roller brush replacement for robot is made of high quality plastic, extremely sturdy and , as well as having thick nylon bristles. [EFFECTIVE SWEEPING]:The main brush is specially designed for robot vacuum, vacuum cleaner rolling brush has thick bristles to remove 99.97% of the debris on the floor. The matching tool brush can easily remove the fine-dust left on the main brush. [REGULAR REPLACEMENT]: In order to keep your robot vacuum in the best cleaning condition, we recommend that you replace the replacement parts for robot once every 3-6 months. Type:Vacuum Cleaner Parts Colour:Red Material:Plastic Package Contents: 1 * Main Brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.