Please read the profile ☆ Color variations are included in the images for reference. System Notebook Set of 2 Seal Book A6 6-Hole Transparent Binder PVC 6-Ring Binder with Button Notebook Cover Yellow & Green Can be used as a seal book, but refills are not included. 【Product Specifications】 Size: 18cm * 12.6cm Color: Yellow + Green. 【High-Quality Material】Made of PVC material, it is soft, water-resistant, and stain-resistant. It also has a button to protect the contents of the notebook. 【Features】The transparent cover design makes it easy to see the contents at a glance and makes it easy to organize, which helps to improve efficiency. The transparent cover also allows for DIY. 【Easy to Use】With a 6-hole ring design, you can add or replace the contents freely by pressing the switches on both ends. The sturdy metal ring design means you don't have to worry about it getting messy. 【Wide Application】Suitable for storing coupons, stamps, banknotes, photos, etc., and can also be used as a cover for study notes, work records, fashion diaries, and travel diaries.