This frame size is X-Small with a hinge to hinge measurement of 124 mm. Ideal for narrow faces. FRAME FEATURES: RJ9506S Metal Aviator feature a classic aviator shape, gold frame and brown gradient dark brown lenses. This pair are a kids version of the classic adult Aviator. PERFECT FIT: These Ray-Ban Junior sunglasses are scaled down to fit kids aged 7-13 years old. 100% UV PROTECTION: To protect your eyes from harmful UV rays, these Ray-Ban Junior sunglasses include lenses that are coated with 100% UV protection.