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Amazon.com : Shenligod Lens Rubber Ring Zoom Grip Rubber Ring for Nikon AF-S 24-70mm f/2.8 G ED Lens : Electronics
zoom lens rubber ring, camera lens rubber ring, zoom and focus grip, accurate replacement for AF S 70-200mm F 2.8G ED VR II : Amazon.com.be: Electronics
Amazon.com : Shenligod Lens Rubber Ring Zoom Rubber + Focus Rubber Grip for Nikkor AF-S 24-70mm F/2.8 G ED Lens (Does not Apply 24-70 F2.8E ED VR Lens) : Electronics
Amazon.com: Lens Focus Rubber Ring, Lens Zoom Focus Rubber Focus Ring Camera Lens Accessories for Tamron 28‑75mm F2.8 Lens A09 : Electronics
Lens Zoom Grip Rubber Ring Replacement for Canon EF 70 200mm f/2.8L USM Camera Accessories Repair part|Len Parts| - AliExpress
How to fix a loose rubber zoom or focus ring on a lens - YouTube