This is a 12-sheet refill set that allows you to save money for one year ♡ Each sheet can hold about 30 bills ♡ We created this refill set so you can freely manage and save your money month by month for 12 months (o^^o) Please use it with an A6 binder ♪ We also sell handmade binders (resin binders)! You can purchase them together. As these are handmade, there may be slight misalignments or waves. Please understand this in advance ★ These are the refills that appear in saving videos and are popular for cash management in Korea and overseas. Since they are double-sided matte, you can check and erase with colored pencils, pencils, Frixion pens, etc. ♡ Water-based pens can be erased by wiping with alcohol ♡ Some pens may not erase, so colored pencils or Frixion pens are recommended! Please use them repeatedly ♡ As these are made by an amateur, please refrain from purchasing if you are looking for perfection like a commercially produced product. 【Size】 17.3cm・10.0cm