Features: Engineered for accuracy, these high pressures swivels spools maintain ±1% pressures accuracy for gauges, features 3000psi stainless steel construction ideal for professional scubas diving accessories. The stainless steel spools integrates a 360 swivels mechanism and quick vents valves cores, ensuring tangles without operations and effortlessly buoyance adjustments during dives. For technical diver and frequent underwater explorers requiring reliable gear for deep dives, cave systems, or extended underwater missions with multiple equipment setups. For high stress environment like wrecks diving or deep sea exploration, where secure gauges connection and rapid air management is critical for diver safety. Universal compatibility with 90% of interfaces ensures seamlessly integration with leading dives brands, eliminating equipment mismatch issue during multiple gear expeditions. Specifications: Dimension:18×9mm/0.71×0.35in Component:Stainless Steel Package Includes: 2pcs swivels Spools note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.