These 30 sets of buttons are made of stainless steel, zinc alloy and iron material, practical and durable to use, good for shoes, bags, crafts and adding ornament to your crafts. This item can be easily installed, a good for your craft projects and daily needs. Features - Size: 1.40 X 0.90 X 0.50 cm/ 0.55 X 0.35 X 0.20 inch. - Material: Stainless steel, zinc alloy and iron. - Choose materials that are not easy to deform or break. - These buttons can effectively solve the problem of loss of bags buttons. - It adopts detachable nail-free design, which is practical and convenient. - There are various styles in one set, which can meet your different needs. - The material is environmentally friendly, light, convenient, easy to operate, and practical, and can be reused. Package list: 30 sets x buttons 30 pairs x fixed studs