Optimal Compatibility: Designed specifically for M40 D110CN Robot Vacuum Cleaner, ensuring a and optimal functioning. Enhanced Cleaning: Features a side brush and swing-out assembly that enhance the vacuum's cleaning efficiency, reaching every corner and edge with ease. Construction: Made with high-quality materials to and durability, even with regular use. Easy Installation: The parts are engineered for quick and hassle-free installation, making maintenance effortless. (The product appearance and printed words depending on the batch, but this does not affect use) Different batches have blue labels, some have them and some don't Colour:Black Material:plastic Package Contents: 1 x Side Brush Swing-out Assembly 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.