Yoolax Adjustable Light Blockers for Window Shades – 2PC, White

Upgrade your inside-mount window shades with Yoolax Adjustable Aluminum Light Blockers, designed for windows 27.5–51 inches tall. These 2-piece light gap blockers are an easy, no-cut solution to eliminate pesky side light gaps, creating a darker, more comfortable space for bedrooms, nurseries, and home offices. Their patented retractable design lets you adjust them to fit seamlessly without tools or permanent modifications—perfect for renters or frequent movers.

Made from durable aluminum alloy with silicone-lined U-tracks, these light blockers are compatible with most Yoolax inside-mount shades (excluding solar-powered versions) and other brands with bottom rails up to 18.5mm thick. Installation is a breeze—just adjust, tear the adhesive backing, and stick. Reusable and repositionable, they’re a hassle-free way to enhance your blackout shades for better sleep and privacy.