What each code means
In an inscription such as RB3578 186 ···□·· 145 you'll find these five details:
Refresh your Ray-Ban RB3578 glasses with a pair of original arms, with the finish matching the selected color.
The RB3578 uses original Ray-Ban metal arms. Before you buy, check the model, color code and length on the inside inscription.
Read the inscription on the inside of your own frame to correctly identify each code.
In an inscription such as RB3578 186 ···□·· 145 you'll find these five details:
Follow the visual guide and make the swap step by step.
That's why we show you how to check the model, color and length, list what's included in the pair and clearly state that screws are not included.
ReplacementLenses has been a certified EssilorLuxottica distributor since 2018.
Right and left Ray-Ban arm with original logo.
Clear check of the color code and the 145 mm length.
Coverage against manufacturing defects and specialist support.
Transform your look and enhance the charisma of your favorite eyewear with our Ray-Ban 3578 Replacement Arms-Temples. Specifically designed to provide firm and comfortable support for your lenses, these original arms are all you need to rejuvenate your glasses and add that personalized touch only Ray-Ban can offer. Each replacement arm has a unique reference or serial number, differentiating it from the complete glasses product.
With a perfect length of 145 mm, these arms fit seamlessly on any face, ensuring a secure hold and exceptional comfort. Their rounded design makes them the ideal choice for any face shape, from oval to square. Crafted from high-quality metal, they promise unbeatable durability and resistance to any conditions, be it a sunny day or heavy rain, you can rely on our Ray-Ban 3578 Replacement Arms-Temples to always be by your side.
We have focused not only on their functionality but also on their aesthetics. The available colors for the front of the glasses are as varied as your tastes, with options ranging from 186 – BLACK/MATTE BLACK to 9176 – SILVER ON TOP BORDEAUX. You have the freedom to choose the one that best suits your personality and mood.
Ray-Ban is synonymous with style and authenticity. Upgrade your glasses with our Ray-Ban 3578 Replacement Arms-Temples and discover why we are the preferred choice of fashion connoisseurs worldwide.
With all these benefits, why wait to refresh your eyewear? Make your eyes shine with our Ray-Ban 3578 Replacement Arms-Temples now. Don’t miss the opportunity to beautify your style with this must-have accessory.

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The price is for a complete pair: original Ray-Ban right and left arms.
The length usually appears at the end of the inscription on the inside of the arm. Select the same measurement shown on your current frame.
No. Screws are offered as an optional add-on because many frames allow you to reuse the existing ones.
Original replacement arms may use a different manufacturing number, even though their shape, size, color and compatibility match the RB3578.
You can, but we recommend selecting the frame's color code to keep a uniform finish.
Your review of Ray-Ban RB3578