Material: Made of high-quality metal, strong and safe, not easily deformed, and easy to use. . Multi-function: suitable for making crafts, shawls, skirts, blankets, mattresses, clothes, knits, tablecloths, diapers, jewelry items, and creating fashionable decorative brooches. You can use them in schools, offices, and homes. . Safe and practical: The safety buckle can keep the pin locked, and the curved groove can safely cover the pin point, which can be firmly fixed in the appropriate position, which is very safe to use. . Smooth and sharp: The sturdy safety pin can be inserted into the material easily and smoothly, and has a sharp tip, which is suitable for various materials. . Size: 30 safety pins, with 3 sizes, 10 in each size. Large safety pin: 6*1.5cm. Medium safety pin: 5*1.2cm. Small safety pin: 3.8*1cm .