[PACKAGE INCLUDES] Four pen loop holders in different colors, perfect for daily use or sharing. Easily distinguish between notebooks with color-coded options. [ANTI-LOST DESIGN] Essential for students, educators, and office professionals, these pen loops securely hold your pen to your notebook, ensuring you never misplace it again. [MATERIALS] Constructed from durable stainless steel clips paired with a high-quality PU leather ring, offering both strength and a refined look. [FIT FOR] Designed to accommodate most pens with diameters between 0.32 and 0.4 inches, making them versatile for various writing instruments. [USE SCENARIOS] - Ideal for students who need quick access to their pens during lectures or exams. - Perfect for teachers and professors wanting to keep their writing tools organized and readily available. - A practical choice for office staff to maintain a clutter-free workspace while ensuring pens are always within reach. Enhance your productivity and keep your writing tools secure with these reliable pen loop holders.