Features: brand new and high quality The package includes 100 Needle Backs and 10 Locking Tool Wrenches, providing a complete and refined set to meet your everyday needs. Made of alloy, our products will not rust easily, with smooth surface, beautiful appearance and strong enough. You don'for t need to worry about pins falling or missing, these practical items use pin holders to fasten pins to leather, vests, jackets, hats, work uniforms, lanyards, bags, cards. Just place the pin on the back of your favorite pin and use the viewing tool to hold it in place, the whole process is quick and easy. If you have any questions, please feel free to contact us. Specifications: Color:Silver Material: Alloy Wrench:Approx.45x15mm/1.77x0.59in (More detailed,please see photo.) Quantity:1 Set Note: Please allow a little error on the size due to manual measurement. The color might exist slightly difference due to different displays. Package includes: 100x Back Buckle 10x Wrench