RB3587CH runs a square metal front on 140mm metal arms, and this aftermarket pair keeps both the length and the all-metal build so the hinge seats the way the factory temple did. Square-fronted Ray-Ban metal frames are less forgiving of a mismatched arm angle than curved styles, since the straight lines make any gap at the hinge more visible, and a slightly off curve is easy to spot against a flat front.

All-metal square frames like the 3587CH typically show their first wear at the hinge screw, where the flat plane of the front meets the rounder arm — that's the point most likely to work loose with regular folding and unfolding. A drop of lubricant on the hinge and a periodic tightening usually solves it before the screw threads wear out. Waiting until the arm droops noticeably usually means the threads are already stripped, so it's worth checking sooner rather than later.

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 3587, mismatches are rare, but you're covered by a 14-day return window if the 140mm arms don't align with your hinge.

Do I need a specific screwdriver to attach these myself?

You'll need a small eyeglass screwdriver, typically included in basic repair kits, to remove the old hinge screw and attach the new 140mm arm to your 3587 frame — the whole swap usually takes under five minutes.

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

Replacing both arms on the 3587 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 140mm hardware itself.

Are these official Ray-Ban replacement parts?

These are compatible aftermarket arms, independently produced to match the 3587's hinge and 140mm length. They aren't manufactured or supplied by Ray-Ban, just built to the same measurements so they attach correctly.