Original Mixed Dual Roller Brush Vacuum Robot Spare Parts, Compatible With Dreame Aqua10 Track / Aqua 10 Pro Track / Aqua 10 Ultra Track D20 Pro Plus D20 Pro / D20 Plus OSSIEAO X50 Ultra/X50 Master/Mova V50 Ultra/L50 Pro Ultra X40 Plus S40 Enhanced L40s(Pro) Ultra Robotic Vacuum Cleaner Accessories