About This Rechargeable Battery Powered, Radio Operated, fits OD: App. 1-3/4inch( 45mm) ID: App. 1-5/8inch (41mm)(Important with inside dimension) Please make sure if it is a smooth cylinder with any slots, internal ribs or any groves inside, if you are not sure welcome to send message to help you make the right decision and save your time to try many times buying and return Perfect for operating Solar Roller Shades or blackout windows roller blinds window shades can tilt open or close at the touch of a button Safety Motors run on 8.4 volts DC, Child and pet safety, with no exposed cords or chains, fully battery operated so no need for mains wiring Energy Savings, motorized blinds motors typically operate ffor 3 to 6 mouths without recharging(depending on usage) Google and Alexa integration--RF/Wifi gateway can be integrate with smarthome to learn the up and down buttons from the included remote and convert remote control to motorized with Alexa support Overview Material : Metal+Plastics Product Dimensions : 236"L x 98"W Brand : Rollerhouse Color : Red Opacity : Blackout
