Features: Engineered with high strengths nylons for durability, this sealing rings and nut combination ensures leak proof connection. Corrosions resistant performances for underwater gear assemblies. For technical diving professional requiring reliable equipment connection during extended underwater operations. Maintains sealing integrity during deep sea exploration, or diverting snorkeling with its light weight construction. Compatibility with standard pipe elbow systems, black nylons component that resist saltwater degradation while ensuring quick hose attachments. Specifications: Dimension:6.8×2.2cm/2.67×0.86in Component:High strengths nylons Package Includes: 1Set Scubas Hose Adapters 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.