Ronstan Low Friction Ring - 21mm Hole - RF8090-21

Ronstan Low Friction Ring - 21mm Hole - RF8090-21

Marsoni

M251S

$34.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Ronstan Low Friction Ring - 21mm Hole - RF8090-21Low Friction Ring 21mm Hole Low Friction rings can be used as a lightweight alternative to a block in some applications. They are best suited for systems requiring relatively small line deflection angles, or for high static loads. The design achieves a nicely rounded internal profile for smooth control line trim under load, and a deep external groove to retain the rope securely within the large shoulders when spliced into a loop. Features: Compact &

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This works well for what I needed – a simple background for my kids’ online school. It’s lightweight and very easy to put together, and it stands up fine without needing to mount anything. The color is listed as black, but it’s more of a dark gray in person. Not a huge deal, just something to be aware of. It’s not super heavy duty, but it does the job for privacy and as a video backdrop. Overall, a good, portable divider that’s quick to set up and works well for light use.

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Reviewed in the United States on February 21, 2026