Smart Ring Size Adjuster - 120Pcs Invisible Fit for Oura Ring Gen 4/3, Samsung Galaxy Ring, Ultra Human Ring AIR, RingConn 2/1, Amazfit Helio - Loose Ring Sizing Kit, Comfortable & Discreet Accessorie

Same issue for me. 10 was too snug, 11 was a little loose. If not bloated, it would slip off. I got these, and used the little one. Its perfect. Ringer Sizer The ring feels bigger cause its not plastic and not getting stuck haha.

They do offer them, though. https://a.co/d/04nUUffD