Lens width about 1 13/16 inches(46mm)

all in one

51 inches (13mm)

Plastic and Wood frame with spring hinges

Acrylic Lens

3 Pack Wide Lens Clip on Polarized Sunglasses C60(57mmX39mm) feed-color-Black/Transparent/Red Lens width about 1 13/16[READERS & OUTDOOR CHALLENGES] If you wear readers, spending time outdoors often means switching between clear lenses and sunglasses. Bright sunlight and reflected light from roads, water, and other surfaces can make driving, fishing, hiking, and daily activities less comfortable while reducing viewing clarity. [EYEKEEPER CLIP ON POLARIZED LENS SYSTEM] The clip on design quickly converts compatible readers into sunglasses whenever needed. TAC