Clubmaster Doublebridge styling on the RB3816 pairs a rectangular acetate front with a 145mm temple arm, sized specifically to this model. Acetate temples on a doublebridge frame like this one need to match the front's finish closely, since the two-tone styling common to this line makes a mismatched arm stand out quickly.

Doublebridge and browline-style frames put most of their thickness into the front, which means the thinner acetate temple is usually what gives out first: a crack or snap at the arm, while the front bar stays solid. Replacing the arm alone is normally enough to fix it. A compatible 145mm aftermarket arm gets the RB3816 back in service without needing to touch the heavier front piece. Checking the acetate finish under bright light before ordering helps confirm the shade will sit close enough to the rest of the frame.

Frequently asked questions

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 145mm arm to your 3816 frame — the whole swap usually takes under five minutes.

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

A new 145mm arm includes its own hinge barrel, so if the wobble is coming from worn threading on the arm side of the 3816, replacing it usually restores a snug, tight fold.

How do I know these arms will fit my Ray-Ban frame?

These arms are made specifically for the 3816, matching its 145mm length and Rectangle hinge design, so they attach to your existing screws and hinge without any filing or adjustment needed.

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

Replacing both arms on the 3816 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 145mm hardware itself.