100% Authentic Gucci RX Prescription Eyeglasses with Approximate +250 strength size 56-14-140 These have a prescription strength of approximate -2.50 and blue light lens. Strength was measured with a Lensometer. Comes with Gucci case, sleeve and certificate Color black with Gold Gucci logos Ask questions, i will try to reply almost immediately Suggestion: If the prescription is not your strength, just take it to your optical store and they will fill with your prescription. The Frame is the star of the show :)