1Easy Installation: The rivets come with a 360 degree rotatable D ring for easy installation and removal. Simply punch a hole in your craft, insert the screw post into the hole, and tighten the screw on the base. 2Compact and Portable: Ideal for creating personalized accessories, these metal ring fasteners can be inserted into your backpacks or other storage bags to connect chains for better portability. 3Excellent Material: Made of excellent zinc alloy and iron, these rivets are sturdy and reliable, with high hardness, wear resistance, oxidation resistance, and can withstand daily use without fading. 4Versatile Usage: These D ring rivets are suitable for handbags, pet collars, leather jackets, wallets, leather pants, backpacks, hats, and more. A practical and stylish addition to your DIY projects. 5D Ring Screw Stud Rivets: Including 20 pieces D ring rivets with screws, featuring a reasonable structural design, making your project more diverse and practical, meeting more usage needs. 20 x DRing Rivets (With Screws)