UNISHADES No Tools No Drill Cordless Blackout Roller Shades for Indoor Windows, Easy to Install, Darkens Rooms, Blocks Heat, and Protects Against UV Rays, Window Size 21” W × 48" H White
At 21 x 48 in, this roller shade suits the shorter openings that often get overlooked: the window above a kitchen sink, a bathroom sash, a basement hopper. The white fabric blocks daylight completely once lowered, and the tension mount presses against the frame so nothing has to be screwed into the trim. A fabric covered valance hides the roller tube along the top edge.
Full Daylight Blocking
The fabric is made to block light fully across the panel, which also cuts UV exposure and the heat that builds up behind glass on a south facing wall. A small gap of about 1/4 in remains between the fabric edge and the inner frame, and it grows wider if the measurement was off, so exact numbers matter here.
Tension Mount In Minutes
Installation relies on pressure rather than hardware. The shade is set inside the window frame and expands until it holds against both sides, with no screws, anchors or drill marks left behind. That makes it workable in a rental, a dorm room or a finished basement where the trim should stay intact, and removal is just as quick when the shade comes down.
Push Pull Positioning
There is no cord or chain hanging down the side. Raising and lowering happens by hand, and the shade stays wherever it is left, whether that is halfway up for morning light or all the way down at night. In a bathroom or a low basement opening within reach of children and pets, the absence of a loose pull is worth having.
Measuring For 21 In
Order by the exact width of the opening, not a close approximation. The finished shade arrives 2/5 in narrower than the listed 21 in so it clears the frame on both sides, which means rounding up or down throws the fit off. Measure at the top, middle and bottom of the recess and work from the narrowest of the three.
Manufacturer specifications
| Dimension Notes | Please order based on your window's exact measurements. The actual width of the blinds you receive will be reduced by 2/5 inch to fit your window. Do not purchase sizes that are close but not an exact match. |
|---|---|
| No-drill installation | No tools, no screws, no damage - this Roman shade installs in minutes using a tension-mounted design. It stays firmly in place by pressing against both sides of the window frame, making it perfect for renters or anyone who wants an easy, drill-free setup with zero wall damage. |
| 100% Blackout Design | Experience complete light control with our 100% blackout cordless roller shade, made from premium fabric that blocks sunlight and UV rays for enhanced privacy and comfort. An 8 cm (3.15") fabric-covered valance is included, specifically designed to cover the gap between the top rail and the roller tube, preventing light leaks while adding a refined, stylish finish to your window. |
| Cordless System | The blinds adopt a cordless manual push-pull operating system, saying goodbye to the safety hazards caused by electric cords. It can effectively prevent accidents caused by tangled cords and ensure the safety of your family and pets. Meanwhile, it can easily achieve a precise stay at any position, allowing you to adjust the light as you wish. |
| Note | blinds are 100% blackout (but there will be a 1/4 inch gap between the shade fabric and the inner frame wall, if your measurements are off by a large margin, the gap will be larger as well) If you mind, please buy with caution. |
