Compatible Model: Specifically designed to fit RB8313 RB8313M sunglasses and similar style frames from other brands Length: 135mm !!! Note: This product does not come with a metal assembly head or the mark!!!! ! And it needs to be assembled by yourself with tools such as glue!! ! Non-eyewear repair professionals should purchase with caution. Please be careful when buying!! ! Material: Crafted from premium carbon fiber material, offering exceptional strength while maintaining minimal weight If you are not satisfied with the product for any reason, please do not hesitate to contact us. We will do our best to satisfy our customers. NOTE: This product needs to be assembled by yourself and requires strong diy skills. Please be cautious when purchasing !！ Replacement Temple Arms For RB8313 RB8313M Sungalsses Eyeglasses Temple Arms Carbon Fiber