Black square glasses, model RB 5134Q, with prescription lenses. - Model: RB 5134Q - Color: Black - Shape: Square - Lens Type: Prescription These were purchased at a Ray-Ban shop in the Ryuo Outlet several decades ago. I believe it was a Japan-exclusive model. I haven't been able to find any similar items when searching the product number. This is a very rare item, even in the used market. The lenses have a slight prescription, so please replace the lenses before use. Thank you for looking.