This set includes 50 pocket-sized mixed rainbow notebooks in 10 colors, 5 notebooks per color, plus 50 custom black ink ballpoint pens, providing plenty of supplies for personal use or sharing with others. The compact mini notebooks are designed to easily fit in pockets and small bags, each holding 80 sheets, 160 pages of A6-sized paper, offering ample space to jot down notes anywhere you go. Made with smooth 80 gsm thick paper that resists ghosting and bleed-through, they work well with most pens, pencils, markers, while the durable Pu leather covers are water-resistant and easy to clean, keeping the notebooks structured with flat pages. Each set pairs with a custom 0.5mm-tip ballpoint pen for smooth, leak-free writing, making the hardcover notebooks perfect for journaling and sketching. Available sizes: 50, 100. Available colors: Black, Burgundy, Dark Brown, Dark Green, Deep Multicolor, Lavender, Light Multicolor, Mixed Colors, Navy Blue