High quality and brand new For DEEBOT N79 DEEBOT N79S robotic .('t fit for robot!!) With high Performance and great durability Filter Dimension:110 mm x 50mm x 9mm Into place for quick and effortless replacement, no required,easy to replace the filter Keep for your N79/N79S running at by changing the consumable replenishment kit 2~3 month,depending on your frequency How to replace your filter: Step 1.Take out the dirt bin. Step 2. Remove the filter on the dirt bin and throw it . Step 3. Put a new filter into the dirt bin. Step 4. Put the dirt bin back into slot on top of the robot. How to replace the side brushes: Step 1. Roll for the over on a flat surface. The brushes will be located on the front with connectors. Step 2. Place a plastic opening tool (or coin) under the lip of the brush head. Step 3. Gently pry up with the opening tool (or coin) so the brush comes out completely. Step 4. Simply replace a new side brush by putting it back to the connector. Material:ABS colour:Yellow + black Package Contents: 1 * Main brush 2 * Side brushes Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.