The tension pins from Toolcraft are an essential accessory for model building. These high-quality tension pins are made from robust spring steel and feature a heavy-duty design that ensures a reliable connection. With a diameter of 21 millimeters and a length of 100 millimeters, they are ideal for various applications in model building. The tension pins are available in a practical sales unit of 10 pieces, making them an efficient choice for projects that require a variety of fastenings. The use of metal as the material group ensures high stability and durability, which is crucial for the demands of model building. These tension pins are easy to handle and provide a precise fit that ensures secure assembly. They are suitable for both hobbyists and professional model builders, helping to enhance the quality and longevity of models.