Made of metal material for durable and practical use. These pin backs can be applied to all lapel pin, tie tacks, service bars and jewelry making, etc. Small size and light weight, these locking pin backs are suitable for jewelry making and DIY handmade projects, can better fit your demands. Features -Color:Assorted Color -Material: Metal -Size:1.00X1.00X0.50cm/0.39X0.39X0.20in - : Made of metal material, light weight, durable, these locking pin backs can be used for a long time. -Easy to match: Simple and elegant design makes these enamel pin backs can easily fit and compatible with any style and colors of your dress. -Wide applications: The locking pin backs for enamel pin can be suitable for any occasions, souvenir, wedding, engagement, Valentine's Day, birthday, anniversary, graduation, party, etc. -Easy to use: The pin back is very easy to lock and remove, with a spring-loaded that allows you to push the base to secure the pin and pull to unlock and remove it. -Good workmanship: Practical enamel pin backs are with high hardness, not easy to deform or break, you can use rest assured. Package list: 10 x Pin Backs