[Widely used] Buttons of different sizes are suitable for sewing coats, sweaters, collectibles, knitting, crocheting, card making and scrapbooks. [Easy to use] These black buttons are made of environment-friendly resin. They are designed with four button holes, which are easy to sew, durable and won't fall off. [Good value for money] There are 100 four hole black resin buttons in five sizes, 0.39 inch, 0.5 inch, 0.6 inch, 0.8 inch and 1 inch, providing you with more choices to meet your different needs. These environmentally friendly manual DIY buttons are packaged in a transparent plastic box. [Robustness] It is made of environment-friendly high-quality resin material, with smooth, waterproof, durable and fadeless surface. Good wear resistance and high temperature resistance. Don't worry about washing and ironing clothes.