What each code means
In an inscription such as RB3750 004/B1 59□·· 145 you'll find these five details:
Refresh your Ray-Ban RB3750 glasses with a pair of original arms, with the finish matching the selected color.
The RB3750 uses original Propionate arms with the Ray-Ban logo. 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 RB3750 004/B1 59□·· 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.
The Original Ray-Ban 3750 Replacement Arms are the perfect solution to refresh and style your favorite Ray-Ban glasses. With a length of 145 mm, these arms ensure a perfect fit and comfort. Made of propionate, a durable and lightweight material, they promise daily resilience and comfort. Available in a range of colors including 002 – Black, 004/B1 – Gunmetal, 004/R5 – Gunmetal, and 9259 – Copper, you can choose the one that best suits your personal style.
Specially designed for the Ray-Ban 3750 model, they fit perfectly on square-shaped glasses with metal fronts, offering a modern and sophisticated look. Changing the arms of your glasses has never been easier, allowing you to always maintain a fresh look without sacrificing quality or style.
By choosing the Original Ray-Ban 3750 Replacement Arms, you guarantee the best quality only Ray-Ban can offer, ensuring your essential glasses have a long-lasting lifespan. These arms not only offer easy installation but also provide the backing of a globally recognized brand known for its excellence in optical accessory design and manufacturing. Refresh your look today!

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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 RB3750.
You can, but we recommend selecting the frame's color code to keep a uniform finish.
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