... on many roller products: roller doors, roller shutters, curtains, blinds and projection screens ,retractable awnings ,garage door ,industrial door ,commerical door ,patio door ,shutter door ... , switch, motorized with manual overrideShinilion Roller shutter Tubular MotorRoller shutter Tubular Motor are used for heavy roller doors like industrial doors Items: 8.7kg~556kg, awning ...