Ray-Ban's RX3547 sunglasses use an oval front matched to slim metal temple arms, and this aftermarket pair is machined to the same profile so the hinge sits exactly where the factory arm did. Because the tooling is model-specific, the curve running into the temple tip follows the oval front's proportions rather than a generic bend pulled from a squarer or rounder frame. Order by the RX3547 code, not by eyeballing a similar-looking metal arm from another Ray-Ban line, since a few millimeters of curve difference is enough to throw off how the glasses sit.

On oval metal frames, the hinge screw usually loosens before the arm itself shows any real wear, because the rounded shape concentrates flex at that single pivot rather than spreading it along a straight edge. A small screwdriver and an occasional quarter-turn keep the fit snug for years. If the front is still solid and only the arm is bent or missing, swapping just the temple is far cheaper than replacing the whole pair.

Frequently asked questions

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 3547 is broken or scratched, or buy the pair if both need replacing — either way they match the mm length exactly.

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

A new mm arm includes its own hinge barrel, so if the wobble is coming from worn threading on the arm side of the 3547, replacing it usually restores a snug, tight fold.

Is it worth buying new arms instead of a whole new frame?

Replacing both arms on the 3547 costs from €26.95 with free worldwide shipping, far less than a new frame, and it's backed by a 3-year warranty against manufacturing defects on the mm hardware itself.

Are these official Ray-Ban replacement parts?

These are compatible aftermarket arms, independently produced to match the 3547's hinge and mm length. They aren't manufactured or supplied by Ray-Ban, just built to the same measurements so they attach correctly.