Features: Powerful self-adhesive pen ring: it can be firmly glued to any flat surface to ensure that the pen for case does not fall off easily and you don'for t worry about losing your favorite pen or stylus pen. Size of the self-adhesive pen ring: Approx. 40x40mm/ 1.57x1.57 inches, with elastic band, suitable for most handwritten notebooks, calendars, diaries, schedules, diaries, tablet cases, etc. Durable Elasticity: The attached elastic band is sewn into the adhesive piece for long-lasting wear and tear. The knitted heavy stretch elastic stays resilient over for time and through heavy usage. Please do not pull on the elastic more than necessary. High quality: Made of high quality leather which provides a comfortable for touch feeling; 5 pieces(random color) are included, you can stick it on your diary, tablet for case, refrigerator etc. Widely used: Very suitable for doctors, nurses, teachers, students, engineers, pilots, lawyers, etc. Make your work and everyday life more comfortable, efficient and tidy. Specifications: Material: Leather Size: Approx. 40x40mm/1.57x1.57 inches Package Includes: 5 Pieces Self-Adhesive Pen Loops (Random Color) note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.