58" ZSTARR Aluminum U Channel Gap Blockers

Updated September 5, 2026

Condition: NEW CANCELED DELIVERY Brand: ZSTARR Model: U40 -White-58in-2pcs ASIN: B0C8MB7JWK Why we need to install light blockers for shades Most blinds and blackout shades are made slightly narrower than the window frame to allow smooth raising and lowering. This design often causes light leakage from the sides. If your blackout blinds or shades still let in unwanted side light, this common side gap issue can reduce room darkening. ZSTARR light blocking strips are designed to help solve this problem and improve overall room darkening performance. Latest U-shaped Aluminum Alloy Light Blockers ZSTARR light blocking strips are made of thickened aluminum alloy tracks for long-lasting durability. The U-shaped design allows the blockers to be installed along the sides of window shades and blinds, providing more stable coverage. By fitting closely against the edges of your blackout blinds and shades, these light blockers help reduce light leakage through the sides. They create a darker indoor environment, helping improve privacy and support better sleep quality. Designed to reduce side light gaps, not to replace blackout shades. Easy To Install Simply fasten the light blockers onto the window frame with screws for a secure fit. The light blockers can be combined or cut to length using a cutting machine for a custom fit. Size: 58 1.6 0.99 inches (2 PCS). Accessories include side covers (4 PCS) and screws. For maximum coverage, install as close to the blackout shades as possible. U-shaped Light-blocking Side Tracks These blackout side tracks are ideal for night-shift workers, light-sensitive sleepers, or anyone creating a darker room during the day for sleep, movies, or gaming. Applicable to roller shades and blinds, zebra shades, and other blinds and shades. Not suitable for cellular shades or honeycomb blinds. Recommended for inside-mount blinds with flat window frames and sufficient depth ( 1 in). Designed for blinds with a slim bottom rail (recommended width 0.5 in) and to reduce common side light gaps ranging from 0.2 1.5 in, allowing closer edge coverage and improved room darkening.

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