Grayscale Spiral Portal with Concentric Rings 4K Wallpaper

A dark monochrome abstract portal formed by sweeping concentric rings and curved bands that recede toward a small bright center. Black, charcoal, and gray tones create a geometric tunnel composition with strong radial depth.

Resolution: 3840×2160
Format: PNG
Original image size: 1.6 MB

Free 4K UHD download ↓

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Image: "Grayscale Spiral Portal with Concentric Rings 4K Wallpaper" by Unique Live Wallpaper — https://uniquelivewallpaper.com/free-4k-wallpapers/grayscale-spiral-portal-with-concentric-rings-4k-wallpaper-4627aa72/

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