This is a bookmark on the larger side (70mm x 145.5mm), that incorporates a panda face at the top. It was designed specifically for two color printing, by request. The first layer (the “black” layer) is 1mm thick. The second layer (the “white” layer) is an additional 1mm. Of course this can be printed in one color, but if you have the option to add a “change filament” or “pause at layer” command (ie. M600), you'll like the results more. I do expect this to look and print well at 80%, but have not tried this yet.