These often come in 4-piece sets that slide together to create a custom-fit telescope box for large mirrors or framed art.
Typically $30 – $100 depending on if it is foldable or fixed-frame. 2. Moving & Shipping Mirror Boxes
If you are relocating, a "mirror box" is a specialized, heavy-duty cardboard container designed to protect fragile items.
There are several niche or aesthetic products that use this name: Mirror box for hands - Jumia Kenya
The user places an affected limb inside the box and their healthy limb in front of the mirror. Moving the healthy limb creates a visual illusion that the affected limb is also moving normally, which helps "retrain" the brain.
This is the most common technical use of the term. A mirror box is a medical device used in to treat conditions like phantom limb pain, stroke recovery, and Complex Regional Pain Syndrome (CRPS).