Its a bookmark based on the design of the Raider sword from the manga “Berserk", i printed it in PLA and because its so thin, it is very flexible making it durable.
You can print it with or without the colors (i don't have grey so only in black for me :(
Print it at 0.08 layer height and if you have, a .2 nozzle (still looks fantastic with a .4 like on the picture.