Mason reader available with Hex-O-Tech High Definition Rx Quality Aspheric Design. Also available with BlueBuster blue light filter to minimize digital eye strain (recommended by the Vision Council) And available in OfficePal and PcPal progressive reader with BlueBuster. Reading magnification powers are from +0.50 to +4.00 in +.25 increments. Doctors recommend blue light filter for college students and contact lens wearers in plano (no power) or low power such as +0.50 to help with dry eye syndrome and digital eye strain. All our glasses come with a case and a cleaning cloth packaged as pictured.