the Rainbow Cute Journal is Made of High-quality Silicon Material, Which is Safe, Eco Friendly, & is Firm & Not Easy to Break. A5 Size Design, Very Portable, Suitable for Most Work Bags, Backpacks & Travel Bags. High Quality Paper, Smooth Surface, Clear Transparent Print, & the Attached Neutral Pen Writes Smoothly. the Pop It Spiral Note Book Soft Surface is Filled with Bubbles That Can Pop Up, & Pressing Can Relieve Pressure, Rainbow Color Matching. the Groove Design of the Note Book Cover Can Place a Pen, Neutral Pen or Pencil, Which Rich Design Sense, Very Novel & Interesting. It is the Best Gift for the Beginning of College, & is Very Suitable for Men, Ladies, & is Also an Ideal Note Book for Party, University & Company.