SIZE AND PACKAGE: Alloy Button: about 17.5x8.5mm, hole: 2mm, 2 colors, 15pcs/color, 30pcs. Alloy Button: about 18x8.5mm, hole: 2mm, 15pcs; Alloy Shank Buttons: about 18x8mm, hole: 2mm, 15pcs; Alloy Shank Buttons: about 17.5x8.5mm, hole: 2.1mm, 15pcs. QUALITY MATERIAL: Crafted with precision and care, our Alloy Round Metal Hollow Out Button is made from high-quality alloy materials, this button boasts exceptional durability and freedom from to corrosion, ensuring it maintains its luster and functionality over time. HOLLOW-OUT DESIGN: Fine workmanship, more creative and novel, hollow metal buttons is more convenient and easy to use these replaceable buttons at home or clothing store. DIY YOUR CLOTHES: Are you tired of wearing the same old clothes every day? Do you want to add a personal touch to your wardrobe without spending a lot of money? Then DIY your clothes! It's an easy and fun way to brighten up your outfits and make them more fashionable and unique. WIDELY APPLICATION: Easy apply hollow metal buttons on jeans, shorts, jackets, suspenders, suits, trousers, coats, shirts, overalls and more, convenient for you to operate without sewing.