The spiral tension pins made of spring steel are an essential accessory for model building and other applications that require a reliable fastening. With a diameter of 3 millimeters and a length of 30 millimeters, these heavy-duty tension pins provide high stability and strength. They are made from high-quality spring steel, ensuring their durability and resistance to mechanical stress. The delivery comes in a convenient unit of 1000 pieces, making them an economical choice for projects with high demand. These tension pins are ideal for use in various materials and offer easy handling to ensure a precise and secure connection. Whether in model building, woodworking, or other craft applications, the spiral tension pins are a reliable solution for those who value quality and efficiency.