Features: Portable size to use: The whole length of these detachable key organizers is about 8.5 cm/ 3.4 inches, and the ring diameter is about 2.5 cm/ 1 inch, suitable for most keys and hanging ornaments, providing you with pleasant use experiences. Practical gifts: You can send these dual key rings to people who love making DIY crafts, such as your family members, friends, colleagues, neighbors, relatives and so on. They will be grateful for your kindness, and your relationships will be promoted. Specifications: Material: iron, aluminum Color: as shown in the pictures Size: Ring diameter: about 2.5 cm/ 1 inch Hole length: about 8.5 cm/ 3.4 inches Package includes: 10 x Quick release keychains Notes: Small parts are included, please take care of little kids in case of swallowing risks. Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.