Milky Cat FB09-19 keycap set, a "solid paper" typically refers to the packaging or a specific matte, paper-like finish often associated with high-quality PBT keycaps. Recommended Paper-Finish Keycaps
: The string is frequently found in automated or low-quality web pages (such as those hosted on Google Sites
Based on unboxing videos from Vietnam and Thailand (where these drops usually appear first), the "Milky Cat FB09 19 New" seems to be one of two things: