Description: Basic steps: 1. Cut out each part roughly. 2. Use a pencil to mark note softly behind each part to avoid disorder (Don't use a pen as it probably makes damaged trace on the front side). 3. Use Scissor or Craft Knife to cut parts precisely by following the outer edge. The level of precision affects the effect of combination. (Cut the most outer edge if the line is thick). 4. Smear white adhesive cement on one of the 2 parts which needed to be stuck together. 5. Stick them together until the cement bone-dry. TIPS : A. For Scissor cutting, suggest not to push the Scissor but pull the paper. B. To make the fold of parts better, please put the part firmly on the table, and put the ruler on that to fold the line. If you have to fold inside, you could first fold it softly outside to make the trace, and fold it back to inside then. C. To make the curved parts better, place the part on the corner of table then push and pull it back and forth. D. To make parts like cylinder, use tools such as pen to assist to make the curl more natural. Specification: Material: Paper Recommended age: 14 year and up Degree of difficulty: 5 (Maximum level 6) Size Chart: 35x20x38cm/13.78x7.87x14.96inch(After Assembled) Package Includes: A set of Cologne Cathedral Paper Model (ASSEMBLY INSTRUCTION included) Note: Notice: What you receive is not finished product, it need you to cut, paste and assemble. Please allow slightly error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!