The set includes 4-inch (100mm) large safety pins made of nickel-plated steel with a smooth black finish, resistant to rust, bending, and wear. Strong and durable design suitable for securing heavyweight fabrics such as wool, leather, canvas, vinyl, and upholstery materials. Features a sharp yet secure locking tip that prevents accidental pricks and fabric damage, making it safe and easy to use. Ideal for various uses including fastening kilts, skirts, quilts, blankets, towels, mattresses, and other sewing or craft projects. This set features 4-inch (100mm) large safety pins crafted from nickel-plated steel with a sleek black finish, offering excellent resistance to rust, bending, and wear. Designed for strength and durability, they are ideal for fastening heavyweight materials such as wool, leather, canvas, vinyl, and upholstery. Each pin has a sharp yet secure locking tip to prevent pricks and fabric damage, ensuring safe and easy use. Perfect for fastening kilts, skirts, blankets, quilts, mattresses, and other sewing or craft applications.