Size：0.75x0.7inch/19x18mm, The error is plus or minus 3%，This brooch is a small size, be sure to check the size when purchasing Made of a fine metal and epoxy resin, each pin has a pin on the back of it so your butterfly buckle pin won’t fall off of you or any object you put it on Perfect for putting on suit lapels, shirts, ties, backbacks, hats, and military uniforms These pins are made of metal and epoxy resin material with high polish plating, not easy to fade and won't tear your clothes, lightweight and exquisite, can accompany you for a long time This is the perfect item to give as a gift Vintage style brooch，Package Included: 1pc