Features: This is very practial pull box with stickers fixed Elastic stretching rope desigs,Cord can up to 3.2 foot and easily retracts, Stainless steel spring, sturdy and easy to use. They can be fixed securely on all types of what's on display Using for rings, pendant, earrings, watch and so on. The lock cases is made from plastic and steel wires materials, it features black color designs,caters to anyone about craft jewelry projects and personalize creation. Use your creativity with the lock case Set, in solution for jewelry makers looking to craft bracelets, necklaces, and other beaded masterpieces. With its designs and sturdy materials, the jewelry lock box stands for any jewelry enthusiast looking accessory and elegant in their handmade pieces. Specifications: Component: Plastic and Steel Wires Color: Black Size: Diameter 3.2cm/1.26inch, 2.5cm/0.98inch Package Includes: 1pc Lock Box Tool Set note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.