This A6-size system planner binder features an aurora color. Made of PU material, it's durable and protects the refills inside. Recommended for those looking for a new planner. 【Material】PU 【Size】A6 【Color】Aurora (Multi-color) Cover and 5 refill sheets Thank you. I've obtained a lovely binder, so how about using it for your daily household accounting? Besides household accounting, it's also recommended for sticker planners, diaries, and calendar planners.