Eyekepper Easyclip Spring Polarized Clip On Sunglasses metal frame plastic lens polarized Lens width: 55 millimeters Lensheight:1 5/8"(41mm) Bridge(DBL):5/16"(8mm)stretchto1 1/8"(28mm) Measure One Lens Of Your Glass Lens To The Outside Rim. The Clip-on Size Selected Needs To Be The Same Shape, Same Size or Next Size Up. Please make sure that the position of your eyeglasses legs are not overlapping the hooks before placing the order, otherwise the clip glasses will not be hooked on the glasses.