25mm Diameter DC ZWave Smart Tubular Motor, with Built-in Radio and Rechargeable Lithium-ion Battery, for 38mm/1 1/2'' Dia Roller Tube, used for Roller/Zebra/Triple Sheer/Roman Shade, for North America OnlyApplicable Shades Size Chart Kids and Pets Safe The shades are rolled down up by the strength of the tubular motors, which stops the danger of entangling. Remote Control With 1 click of the remote, the shades are automatically raised and lowered. That's a great help for elderly people with mobility problems. Electronic Limits Users can set top and bottom limits, and favorite positions, and make initial programming by the remote. Before setting your