Ray-Ban's RX6536 prescription frame uses a square metal front with 140mm metal arms, and this aftermarket pair matches that length and straight-line profile so it hinges into the front the way the factory temple did. All-metal eyeglass frames like this one need the arm gauge to match closely, since a thinner or thicker substitute changes how the hinge sits, even when the overall length is correct.

Square metal eyeglass frames tend to flex slightly at the hinge with everyday wear — taking glasses on and off, adjusting them on the nose — and that repeated motion is what eventually loosens the screw rather than bending the arm itself. Tightening it periodically extends the life of the frame well beyond what the arm alone would suggest. Arms that won't hold their angle after a few days of regular wear are usually telling you the screw needs another quarter-turn, not that the frame is failing.

Frequently asked questions

What if the arms arrive and the hinge doesn't line up with my frame?

Because each pair is listed against a specific model, in this case the 6536, mismatches are rare, but you're covered by a 14-day return window if the 140mm arms don't align with your hinge.

My hinge feels loose — will new arms fix that, or is it the frame that's worn?

A new 140mm arm includes its own hinge barrel, so if the wobble is coming from worn threading on the arm side of the 6536, replacing it usually restores a snug, tight fold.

Can I replace just one arm, or do I have to buy both?

You can order a single side if only one arm on your 6536 is broken or scratched, or buy the pair if both need replacing — either way they match the 140mm length exactly.

Are these official Ray-Ban replacement parts?

These are compatible aftermarket arms, independently produced to match the 6536's hinge and 140mm length. They aren't manufactured or supplied by Ray-Ban, just built to the same measurements so they attach correctly.