MT Casa Shade Washi Paper Masking Tape are high-performance shading tapes that cuts 99% of ultraviolet rays in addition to the ability to soften sunlight and have a shading effect. Simply unroll and stick to any window to reduce light and add shaded designs or colors to your space. Precautions for use: Depending on the type of surface, the surface of some places may be removed or a trace may be seen after removing MT. Before using, please first stick it in an obscure location to check. Genuine MT Kamoi Kakoshi. Produced in Japan.