Hold tightly,not easy to loose.The brooch bar pin is safely and the needle is stiff enough that you don't need worry about it will fall out.These safety pins are somewhat easier to open with a slight push.Won't get stuck when open or close them. Using smoothly.If your project requires sturdy pin to hold terser object,or go through repeated movement,the bar pins will give out easily and quickly. The ends are proper sharp,doesn't hurt you.The brooch bar pins strong whilst being fine enough to puncture fine material.They are lightweight and just need to take a little pressure to penetrate.They are plenty sharp for pinning your clothes together. The length and the hardness can pass through thicker materials,include linen. Easy to operate:the back of the brooch bar pins have 2 holes,you can put your projects in place for sewing or gluing.There is a buckle on the back of the safety pin,making installation and removal a breeze. Glue on and grab out easily. Versatile use: These brooch bar pins are good for crafting and sewing,crocheted brooch,badge,name tag,jewelry,boutonnieres wedding,handmade flower pins, using these to build a paper flower wall.Also can use these to hold some elastic together on somecostume. Easy to replace old or broken. Size: 0.75inch/20mm Packing: 200pcs.The brooch bar pin are made of carbon steel.No rust,not flimsy,durable and sturdy.Hard to bend.