xTool offers a full refund for orders before shipping.. The safety goggles can filter out light in the wavelength range of 190nm–460nm & 800nm–1100nm.. Wearing safety goggles during laser processing can effectively protect your eyes.. Optical density: OD 6+; Visible light transmittance: 45%，. Compatible with all existing laser sources of xTool.. Packing list: goggles with case and clean cloth
