1. Easy to replace the inner core, one key to open and close, easy to take out2. Matte texture, waterproof and scratch-resistant3. Four kinds of inner pages are optional, thickened...
1. Easy to replace the inner core, one key to open and close, easy to take out 2. Matte texture, waterproof and scratch-resistant 3. Four kinds of inner pages are optional, thickened paper, double-sided writing 4. Elastic buckle, large capacity design, can hold more 5. Material: double tape, PP shell 6. Applicable refills: general 4mm hole spacing refills 7. Size: A5 case is about 18x22cm, A5 refill is about 14x21cm, B5 case is about 21.2x27.8cm, B5 refill is about 18.5x26cm