Quartz & Welding Metal Working Split Lens Spectacles in Model 300 Frame. Arms are telescoping and rachet up and down to allow universal, secure fit. Hook-style ends make the arms hold tight to the ears comfortably, ensuring that the glasses will never fall off. Below is a list of split lens variations that we stock. Custom orders are available upon request. This lens is a green in color. The spectral response of this glass shows excellent ultraviolet and infrared protection. The visible light transmission will depend on the chosen shade. The higher the number the darker the glasses. The filter DOES NOT provide sodium flare protection.