Turn your glasses into Polarised Night Drivers Excellent clip-ons with a Yellow hi-contrast tint for a clear crisp polarised vision and UV protection. these clip-ons raise contrast and are good for night driving and other activities such as Golf. Slip on;" type clip with rubber tipped feet to protect spectacles, designed for plastic rounded frames 57 ml x 57 ml fits most round glasses shapes. Top quality eyewear at lowest online prices.