Wallpaper roll for wainscott

Have had this roll of old world style wallpaper trim for years and never got around to using it! artistic globes and books line a 'shelf', giving it an optical illusion effect, perfect for a study or office. Bonus, it looks good as a live stream or zoom background!📽📚📚📚width meeasures please ask!📏if you want me to unroll and measure the length...it seems fairly long, i got it as is and it does not appear to ever have been cut. maybe there is a standard length for this kind of trim 🤷‍♀️?