The Flashmer Torpille is a gold-plated brass swivel designed for heavy-duty connections. Both ends are closed, with no built-in clip. The 4, 5, and 7 mm body diameters have breaking strengths of 80, 120, and 265 kg, respectively. The 9 and 10 mm models are rated for 420 and 630 kg. Each packet contains two swivels of the same diameter.