The spiral tension pins made of spring steel are an essential accessory for model building and provide a reliable solution for fastening and connecting components. With a diameter of 4 millimeters and a length of 10 millimeters, these tension pins are manufactured according to DIN 7343 standards, ensuring their quality and durability. They are made from robust spring steel, which gives them high strength and flexibility. The packaging unit contains 500 pieces, making them a practical choice for extensive projects. It is important to note that these tension pins are not suitable for children under 4 years old, highlighting the potential dangers of small parts. These spiral tension pins are ideal for various applications in model building, offering easy handling and a secure connection of components.