This frame size is X-Small with a hinge to hinge measurement of 122 mm. Ideal for narrow faces. PERFECT FIT: These Ray-Ban Junior eyeglass frames are scaled down to fit kids aged 7-13 years old PRESCRIPTION READY EYEGLASS FRAMES: Ray-Ban Junior eyeglass frames feature demo lenses that need to be replaced with prescription lenses so you can enjoy clear vision LOW BRIDGE FIT: Low Bridge Fit frames are designed for those with high cheekbones and lower nose bridges, for comfortable all day wear CASE & CLEANING CLOTH INCLUDED: Each pair of Ray-Ban Junior eyeglass frames come with a cleaning cloth and case to clean and protect your eyeglass frames from scratches and damage