About this 3D model

I have designed a versatile storage tool. When you bring this pencil case to the workplace, you can neatly arrange various pens for easy access during work. When the work is completed, you can take the pens out and assemble them into a pencil box mode, placing it in the backpack to prevent them from being crushed. ------------ I originally envisioned designing it to accommodate watercolor brushes as well, but since I only had the A1 MINI for verification, I used the A1 MINI's maximum dimensions as the size for this project. ------------ Originally, I wanted to design it to accommodate watercolor brushes as well, but since I only had the A1 MINI for verification, I used the A1 MINI's maximum dimensions as the size for this project.