material of the silver color safety pin :steel alloy
features of safety pin :
1. Our safety pin is from 18mm to 57mm & also can be customized according to your need.
2. Iron safety pin & copper safety pin are the most common two materials. Four colors are available now: Silver, gold, and black. You can find both nickel & nickel free safety pins here!
3. Our safety pin is made of 100% eco-friendly material. They well meet the international quality standard. It is heavy duty and durable and tough enough for your use.