MATERIAL: This 2.9 inch delta quick link (SNDL-03) is made of marine grade stainless steel 316 for maximum corrosion resistance and durability. The triangle quick link is ideal for marine and industrial rigging and linking applications. MULTI-APPLICATIONS: The SHONAN triangular-shaped quick link is designed for attaching either three things together without them bunching up all, creating a t-junction. This quick link can also be used for hanging a swing or hammock. EASY TO USE: SHONAN stainless steel chain quick connector(SNDL-03) is perfect for fast connection between chains and ropes. Design of threaded end and hex nut provide tight and secure connections. SPECIFICATION: This 2.9" stainless steel triangle carabiner(SNDL-03) weighs 2.9 ounces(82 grams), it has excellent strength and toughness due to its marine grade raw material, and its working capacity can range up to 1535 lbs(690 kg). SATISFACTION: This package comes with TWO piece of threaded delta quick links along with a one year satisfaction guarantee. Please contact us with any questions or issues that you may have. We will be more than happy to assist you. triangle quick link