No light gap at the headbox side channel connection. 
Light proof hem bar recessed into light proof side channel.Precision engineered and custom built for each opening. Durable anodized and painted finishes insure an aesthetically pleasing installation. System includes aluminum headbox, side and sill channels. Headboxes available to recess or surface mount.
*Exclusive, patented Fabric Retention System is available with SB/9000 and SB/9100. LightBlocs are available in other fabrics but without fabric retention system.)Motorized Operation-Motor-in-roller for smooth, reliable operation. Right hand or left hand motor location.Motor options for motorized FlexShades Controls for motorized FlexShades.
Use optional IntelliFlex® control system, a total package, providing maximum user control of electrically operated window shades. Crank-Operated-Offer complete reliability and precise light control, with virtually no effort. Even the largest shades operate smoothly. Compact bi-directional gear assembly. Crank hinges to form a thin, straight rod at edge of window when not in use or it can be detached.Bead Chain Clutch -Unlike competitive systems, the Draper bi-directional clutch never needs adjustment and can be mounted either right or left. Window shades stop when operating chain is released. Standard stainless steel chain hangs at the side, leaving the view unobstructed. (The optional chain hold-down is designed to keep children from getting tangled in the cord.) Up and down stops prevent shades from being raised or lowered too far. Draper’s unique Light Seal Kit prevents light from coming through where the chain exits the head box.. Spring Roller-Galvanized steel rollers and heavy-duty springs sized to operate safely and reliably. Roller is under constant tension, with a latching chain at sill.U. S. Patent # 5,323,831
We can print graphics on your window shade!