Double spiral binding, turn the pages at will, beautiful and durable. Black PP cover, unique silkscreen printing process, contrasting colors. Flexographic printing, ink printing lines, and water-based pen writing will not meet the oil-broken line. The book is cut accurately, the cutting edge is neat, and there will be no cut marks. Increased paper weight, writing is smoother, can prevent ink seepage, does not irritate the eyes, effectively protects consumers- eyes, and reduces eye fatigue. Measuring 5.83*4.4 inches, this custom pp double spiral notebook. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. We offer logo printing and full packaging customization. Product Highlights: Writable surface, lightweight, recyclable paper.