Transformer - Wood & Carbon Fibre SunglassesThe multi layer two pin wood3 tech glasses are made using natural walnut, kosso and ebony wood with acetate tips and quality 2: 3 claw stainless steel hinge for comfort. Frames are suitable for prescription lenses, and are supplied with clear demo lense and clip on sunglasses in a choice of Blue or Yellow RV. Also available with blue light blocking lens, and without clip ons. Multi layer wood3 frame & arms with acetate tip Wood3 technology = wood <