Acrylic Lens

Plastic and Wood frame with spring hinges

Electromagnetic ray

Lens width about 1 3/4 inches (44mm)

Lens height about 1 inches (26mm)

3 Pack Wide Lens Clip on Polarized Sunglasses C60(57mmX39mm) feed-color-Black/Transparent/Red Acrylic Lens[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