The adjustable elastic strap allows for easy adjustment and fits most hard-sided journals, notebooks, planners, and more. Portable pen case suitable for daily use, with a pen hole that fits most fountain pens, and gel pens. Made of high-quality artificial leather and nylon elastic band for durability and softness. Can be used as storage for pens and pencils, compatible with various notebooks. You will receive 10 elastic band pen caps in a variety of colors. This ensures that you have enough quantity to meet your needs and even share them with your friends. Item Name: Pen Case Material: Faux Leather, Nylon Features: Adjustable Strap, Great Elastic, Widely Used Size Details: Size: 8cm x 3.5cm/3.15" x 1.38" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 10 x Pen Case