These button-style nosepads are made for Ray-Ban models that use a push-in attachment, a round post on the frame that the pad seats onto, rather than the hook-and-wire mount used on other styles. As with any aftermarket pad, they're a compatible fit rather than a Ray-Ban part.

Push-in pads tend to work loose or drop out entirely before they show much visible wear, since the fit depends on the pad's socket staying snug on the post. If a pad has gone missing, feels loose, or has hardened and lost its grip, pressing a fresh pair into place restores the bridge support that keeps a frame sitting level, with no adhesive or hardware involved, just a firm push onto the post.