Dear Customer, thank you for contacting Firmoo. Each frame has fixed sizes and we are unable to customize it. Moreover, this frame
OBM2007A has a size of
51-17-145 (small), you can also see the frame size details from the frame page itself or click on the frame size guide on top of the frame color selection, We understand that choosing a perfect frame size online can be tough sometimes so we suggest that you could please check this link
https://www.firmoo.com/help-p-1.shtml for reference. For any further questions or immediate assistance, you may also call our call center thru toll-free hotline at 1-855-487-6006 opens every day from 7 a.m.- 4 p.m. PDT. You can also contact us through our Live Chat Support Team: Start a live chat (Everyday, 4 a.m.-10 p.m. PDT.) or email us at service@firmoo.com. Please stay safe and healthy!

Firmoo's replyMar 19 , 2021