Spec: Material: Plastic Size: Approx. 21.8 x 16.5cm / 8.6 x 6.5in How to Use: 1. View the guide and choose the card size; 2. Trim the paper to match the paper size; 3. Align the paper left side with the corresponding scale line; 4. Score and fold with a bone folder; 5. Rotate the paper 90° clockwise, align the score mark with the scale line, then score; 6. Repeat step 5 for all sides of the paper; 7. Cut off the gaps with scissors; 8. Round the corners with a hole punch; 9. Fold and glue. packing list: 1 x Scoring Board 1 x Folder Tool Notice: Manual measurement, there will be 0-0.5cm error.