Replacement Part Kit for iRobot Roomba S Series s9(9150), s9+(9550) Robotic Vacuum Cleaner. The Corner Brush is specially designed at a 26 degree angle, using five 30mm brushes to clean deep into corners and along wall edges. Made of high-strength and environmentally Friendly protection material. colour:black & green material:plastic size:8*8.5*2cm Package Contents: 10*Side Brush Only the above package content, other products are not included. Note: Light shooting 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.